Availability
Sniper EFI products are part of the Holley Performance family and offer economically priced self-tuning fuel injection systems. Summit Racing carries Sniper EFI throttle...
Sniper EFI products are part of the Holley Performance family and offer economically priced self-tuning fuel injection systems. Summit Racing carries Sniper EFI throttle body kits as well as Sniper EFI fabricated intake manifolds designed to maximize your vehicle’s power while going easy on your budget. Add Sniper EFI systems and components to your arsenal today. You can order yours right now from Summit Racing!
Sniper EFI products are part of the Holley Performance family and offer economically priced self-tuning fuel injection systems. Summit Racing carries Sniper EFI throttle body kits as well as Sniper EFI fabricated intake manifolds designed to maximize your vehicle’s power while going easy on your budget. Add Sniper EFI systems and components to your arsenal today. You can order yours right now from Summit Racing!
Holley Sniper 2 EFI Inline Pump Fuel Injection Systems are self-tuning, easy-to-install, EFI conversions for 4-barrel (4150 flange) style carburetors. They took everything that they learned from the original Sniper EFI system and added new features that will make your EFI conversion more simple, reliable, and modern. Like all Sniper EFI systems, Sniper 2 is designed to work with the Sniper Ecosystem that includes Hyperspark ignition, complete fuel systems, multiple user interfaces/dash displays, and more. Make your classic drive like a modern fuel-injected vehicle, with easy cold starts, smooth drivability, and improved fuel economy! Sniper 2 is designed to be installed at home in your garage with limited tools and the support of Holley's comprehensive installation manual and videos. The user-friendly setup wizard allows you to answer a few simple questions about your engine—and the system will begin self-tuning with no laptop or tuning required. If you're looking for a high-performance fuel injection system that delivers power, efficiency, and ease of use, look no further than the Sniper 2 EFI. Main features: * Only 4 wiring connections required: Battery+, Battery-, Switched Ignition, and RPM * Includes 20 feet of 3/8 in. vapor guard fuel hose, filters for before and after the pump, fittings and hardware, cushioned mounting brackets, and an external, inline pump * Can be used with 3/8 in. factory sending units or add a dedicated bulkhead fitting * Innovative clamping system allows you to locate the module anywhere in the tank beside your existing sending unit and can be rotated 360 degrees for easier clocking. * Main harness includes plug-and-play HyperSpark distributor support for integrated timing control, making your ignition setup hassle-free * Wide variety of tuning and gauge display options: from a 3.5 in. full-color LCD hand-held, 5 in. digital dash, or the Bluetooth dongle, which allows you to connect either an iOS or Android based cell phone to your Sniper 2 * Female -6 AN O-ring fittings * Overall height is only 3.280 in. * Supports up to 650 hp naturally aspirated or 575 hp on boost with four 100 lbs.-hr. injectors * Requires 55-65 PSI * Next generation ECU features improved RF noise and interference resistance (stands up to old car wiring, noisy alternators, faulty plug wires) * Redesigned throttle shaft and plate geometry for a smoother throttle feel * Integrated transmission kickdown provisions for GM TH350/400, 200-4R/700R4 and Ford C4/C6 applications * "Hidden Harness" wiring exit from the rear of throttle body for a clean appearance * Inputs and outputs consist of: 2x ground inputs, 2x ground outputs, 1x TPS output (0-5 V), and 1x tach output * Redesigned injector connector for improved reliability * Onboard contactless magnetic TPS sensor ensures an accurate TPS reading * Next generation mil-spec style M8 positive lock connector for CAN1 and CAN2 provides the latest in CAN bus technology for a simple yet robust connection * Cast-in fuel crossover from the primary to secondary fuel rail * The included Bosch LSU 4.9 wideband oxygen sensor provides real-time fuel map learning * Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor install with stainless steel T-bolt clamps and a stainless steel weldable oxygen sensor flange * Sniper 2 throttle bodies are serialized, which provides an improved experience in the event of any unit needing to be inspected
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$1,649.95
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$1,899.95
Holley Sniper 2 EFI Base Fuel Injection Systems are self-tuning, easy-to-install, EFI conversions for 4-barrel (4150 flange) style carburetors. They took everything that they learned from the original Sniper EFI system and added new features that will make your EFI conversion more simple, reliable, and modern. Like all Sniper EFI systems, Sniper 2 is designed to work with the Sniper Ecosystem that includes Hyperspark ignition, complete fuel systems, multiple user interfaces/dash displays, and more. Make your classic drive like a modern fuel-injected vehicle, with easy cold starts, smooth drivability, and improved fuel economy! Sniper 2 is designed to be installed at home in your garage with limited tools and the support of Holley's comprehensive installation manual and videos. The user-friendly setup wizard allows you to answer a few simple questions about your engine—and the system will begin self-tuning with no laptop or tuning required. If you're looking for a high-performance fuel injection system that delivers power, efficiency, and ease of use, look no further than the Sniper 2 EFI. Main features: * Only 4 wiring connections required: Battery+, Battery-, Switched Ignition, and RPM * Innovative clamping system allows you to locate the module anywhere in the tank beside your existing sending unit and can be rotated 360 degrees for easier clocking. * Main harness includes plug-and-play HyperSpark distributor support for integrated timing control, making your ignition setup hassle-free * Wide variety of tuning and gauge display options: from a 3.5 in. full-color LCD hand-held, 5 in. digital dash, or the Bluetooth dongle, which allows you to connect either an iOS or Android based cell phone to your Sniper 2 * Female -6 AN O-ring fittings * Overall height is only 3.280 in. * Supports up to 650 hp naturally aspirated or 575 hp on boost with four 100 lbs.-hr. injectors * For applications using a vehicle specific EFI conversion tank and fuel pump, or already having a fuel system capable of the required 55-65 psi, these systems are offered without a pump and fuel lines * Next generation ECU features improved RF noise and interference resistance (stands up to old car wiring, noisy alternators, faulty plug wires) * Redesigned throttle shaft and plate geometry for a smoother throttle feel * Integrated transmission kickdown provisions for GM TH350/400, 200-4R/700R4 and Ford C4/C6 applications * "Hidden Harness" wiring exit from the rear of throttle body for a clean appearance * Inputs and outputs consist of: 2x ground inputs, 2x ground outputs, 1x TPS output (0-5 V), and 1x tach output * Redesigned injector connector for improved reliability * Onboard contactless magnetic TPS sensor ensures an accurate TPS reading * Next generation mil-spec style M8 positive lock connector for CAN1 and CAN2 provides the latest in CAN bus technology for a simple yet robust connection * Cast-in fuel crossover from the primary to secondary fuel rail * The included Bosch LSU 4.9 wideband oxygen sensor provides real-time fuel map learning * Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor install with stainless steel T-bolt clamps and a stainless steel weldable oxygen sensor flange * Sniper 2 throttle bodies are serialized, which provides an improved experience in the event of any unit needing to be inspected
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$1,249.95
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$1,499.95
Holley Sniper 2 EFI Inline Pump Fuel Injection Systems are self-tuning, easy-to-install, EFI conversions for 4-barrel (4150 flange) style carburetors. They took everything that they learned from the original Sniper EFI system and added new features that will make your EFI conversion more simple, reliable, and modern. Like all Sniper EFI systems, Sniper 2 is designed to work with the Sniper Ecosystem that includes Hyperspark ignition, complete fuel systems, multiple user interfaces/dash displays, and more. New for Sniper 2 is the Power Distribution Module (PDM). This cost-effective and optional accessory isolates the core of your EFI and ignition wiring into one, easy-to-use location. Simply slide the stripped wire ends under the positive lock connector and tighten down the set screw. Battery and a switched 12 V source is all that's required to power the PDM and your Sniper EFI. Make your classic drive like a modern fuel-injected vehicle, with easy cold starts, smooth drivability, and improved fuel economy! Sniper 2 is designed to be installed at home in your garage with limited tools and the support of Holley's comprehensive installation manual and videos. The user-friendly setup wizard allows you to answer a few simple questions about your engine—and the system will begin self-tuning with no laptop or tuning required. If you're looking for a high-performance fuel injection system that delivers power, efficiency, and ease of use, look no further than the Sniper 2 EFI. Main features: * Only 4 wiring connections required: Battery+, Battery-, Switched Ignition, and RPM * Includes 20 feet of 3/8 in. vapor guard fuel hose, filters for before and after the pump, fittings and hardware, cushioned mounting brackets, and an external, inline pump * Can be used with 3/8 in. factory sending units or add a dedicated bulkhead fitting * Innovative clamping system allows you to locate the module anywhere in the tank beside your existing sending unit and can be rotated 360 degrees for easier clocking. * Main harness includes plug-and-play HyperSpark distributor support for integrated timing control, making your ignition setup hassle-free * Wide variety of tuning and gauge display options: from a 3.5 in. full-color LCD hand-held, 5 in. digital dash, or the Bluetooth dongle, which allows you to connect either an iOS or Android based cell phone to your Sniper 2 * Female -6 AN O-ring fittings * Overall height is only 3.280 in. * Supports up to 650 hp naturally aspirated or 575 hp on boost with four 100 lbs.-hr. injectors * Requires 55-65 PSI * Next generation ECU features improved RF noise and interference resistance (stands up to old car wiring, noisy alternators, faulty plug wires) * Redesigned throttle shaft and plate geometry for a smoother throttle feel * Integrated transmission kickdown provisions for GM TH350/400, 200-4R/700R4 and Ford C4/C6 applications * "Hidden Harness" wiring exit from the rear of throttle body for a clean appearance * Inputs and outputs consist of: 2x ground inputs, 2x ground outputs, 1x TPS output (0-5 V), and 1x tach output * Redesigned injector connector for improved reliability * Onboard contactless magnetic TPS sensor ensures an accurate TPS reading * Next generation mil-spec style M8 positive lock connector for CAN1 and CAN2 provides the latest in CAN bus technology for a simple yet robust connection * Cast-in fuel crossover from the primary to secondary fuel rail * The included Bosch LSU 4.9 wideband oxygen sensor provides real-time fuel map learning * Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor install with stainless steel T-bolt clamps and a stainless steel weldable oxygen sensor flange * Sniper 2 throttle bodies are serialized, which provides an improved experience in the event of any unit needing to be inspected
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$1,749.95
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$2,549.95
Introducing Holley Sniper EFI 2300 two-barrel fuel injection systems! They're perfect for any vehicle that came standard with a 2300 Holley flange, like some Fairlanes, F100s, Javelins, Mustangs, Thunderbirds, Cougars, and more. These systems are economically priced so you can have all the benefits of EFI and still have money to finish or upgrade your ride! Put an end to cold start issues, hesitations, vapor lock, and flooding. Upgrade to Sniper EFI and get the tactical accuracy of EFI today! Features/Benefits: * Bolt-on 2300 flange carburetor replacement * Throttle body mounted ECU (kits only); no extra boxes to mount * Supports up to 350 hp with two 100 lb./hr. injectors * Only 4 wiring connections required! (Battery +, Battery -, Switched Ignition, and RPM) * Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (preset to 58.5 psi) * Integrated ignition timing control * High-resolution full color touch screen for initial setup, tuning, and gauge displays * Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own); NO laptop required! * Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI * The included Genuine Bosch LSU 4.9 wideband oxygen sensor provides real-time fuel map learn * OEM-style TPS/IAC and fuel pressure regulator for years of dependable service * Included clamp-on oxygen sensor kit for 2.25 in. exhaust ensures a leak-free oxygen sensor installation, with stainless steel T-bolt clamps and a stainless steel (weldable) oxygen sensor flange * Equipped with C4 / C6 Ford transmission kick down lever, as well as TH350, 400, and 700R4 provisions * Accepts many common 5 1/8 in. OEM or aftermarket air cleaner assemblies * Master Kit includes complete fuel system consisting of: 20 ft. of 3/8 in. vapor guard fuel hose, 12-920 fuel pump, filters, necessary hardware and bulkhead fitting to return fuel into the tank * Sniper EFI software free to download which allows for real time tuning
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$1,199.95
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$1,549.95
Holley Sniper 2 EFI Base Fuel Injection Systems are self-tuning, easy-to-install, EFI conversions for 4-barrel (4150 flange) style carburetors. They took everything that they learned from the original Sniper EFI system and added new features that will make your EFI conversion more simple, reliable, and modern. Like all Sniper EFI systems, Sniper 2 is designed to work with the Sniper Ecosystem that includes Hyperspark ignition, complete fuel systems, multiple user interfaces/dash displays, and more. New for Sniper 2 is the Power Distribution Module (PDM). This cost-effective and optional accessory isolates the core of your EFI and ignition wiring into one, easy-to-use location. Simply slide the stripped wire ends under the positive lock connector and tighten down the set screw. Battery and a switched 12 V source is all that's required to power the PDM and your Sniper EFI. Make your classic drive like a modern fuel-injected vehicle, with easy cold starts, smooth drivability, and improved fuel economy! Sniper 2 is designed to be installed at home in your garage with limited tools and the support of Holley's comprehensive installation manual and videos. The user-friendly setup wizard allows you to answer a few simple questions about your engine—and the system will begin self-tuning with no laptop or tuning required. If you're looking for a high-performance fuel injection system that delivers power, efficiency, and ease of use, look no further than the Sniper 2 EFI. Main features: * Only 4 wiring connections required: Battery+, Battery-, Switched Ignition, and RPM * Innovative clamping system allows you to locate the module anywhere in the tank beside your existing sending unit and can be rotated 360 degrees for easier clocking. * Main harness includes plug-and-play HyperSpark distributor support for integrated timing control, making your ignition setup hassle-free * Wide variety of tuning and gauge display options: from a 3.5 in. full-color LCD hand-held, 5 in. digital dash, or the Bluetooth dongle, which allows you to connect either an iOS or Android based cell phone to your Sniper 2 * Female -6 AN O-ring fittings * Overall height is only 3.280 in. * Supports up to 650 hp naturally aspirated or 575 hp on boost with four 100 lbs.-hr. injectors * For applications using a vehicle specific EFI conversion tank and fuel pump, or already having a fuel system capable of the required 55-65 psi, these systems are offered without a pump and fuel lines * Next generation ECU features improved RF noise and interference resistance (stands up to old car wiring, noisy alternators, faulty plug wires) * Redesigned throttle shaft and plate geometry for a smoother throttle feel * Integrated transmission kickdown provisions for GM TH350/400, 200-4R/700R4 and Ford C4/C6 applications * "Hidden Harness" wiring exit from the rear of throttle body for a clean appearance * Inputs and outputs consist of: 2x ground inputs, 2x ground outputs, 1x TPS output (0-5 V), and 1x tach output * Redesigned injector connector for improved reliability * Onboard contactless magnetic TPS sensor ensures an accurate TPS reading * Next generation mil-spec style M8 positive lock connector for CAN1 and CAN2 provides the latest in CAN bus technology for a simple yet robust connection * Cast-in fuel crossover from the primary to secondary fuel rail * The included Bosch LSU 4.9 wideband oxygen sensor provides real-time fuel map learning * Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor install with stainless steel T-bolt clamps and a stainless steel weldable oxygen sensor flange * Sniper 2 throttle bodies are serialized, which provides an improved experience in the event of any unit needing to be inspected
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$1,349.95
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$2,149.95
Unlock the full potential of your Terminator X EFI system with a Holley Sniper replacement Terminator X Bluetooth module—the ultimate tool for wireless tuning and real-time engine monitoring. This advanced module connects via Bluetooth, allowing you to adjust and optimize your engine directly from your iOS or Android smartphone (tablets not supported at this time). Use by itself or in conjunction with Holley's suite of dashes. Additional details: * Wireless connection to your Terminator X or X Max ECU with a plug-and-play Bluetooth module * Compatible with iOS or Android-based smartphones for complete control of your Terminator X EFI system * Built-in Terminator X EFI Wizard, basic tuning, advanced tuning, and input/output control, as well as customizable data monitor * Quickly make basic or advanced tuning adjustments, change rev limiter RPM, or adjust idle settings without firing up a laptop * Customizable live dash display mode turns your phone into a digital dash, utilizing your phone's accelerometer to display vehicle speed * Mizu style CANbus connector makes installation easy and secure * Explore Holley EFI parts to upgrade your ride or easily access technical documents and installation articles for immediate assistance
( 1 )
$224.95
Holley Sniper offers transmission-specific controller harnesses for a variety of GM and Ford automatic transmission models. The plug-and-play harnesses are pre-terminated with j4 connectors. Order the harness recommended for your EFI application.
Not Yet Reviewed
$269.95
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$299.95
The Holley Sniper Transmission Controller (STC) is designed for common GM and Ford electronic 4-speed automatic transmissions. Three part numbers cover a complete range of applications—all Sniper EFI systems, Sniper 2 EFI-specific (M8 CAN connection), or a full standalone unit. The Sniper specific applications connect to your Sniper EFI system via CAN bus and are programmed through the existing Sniper 3.5 in. touch screen. No programming is available with PC computer software; however, the transmission functions can be data-logged and reviewed with Sniper PC software. The Standalone version includes a dedicated 3.5 in. touch screen and is primarily intended for carbureted engine combinations. GM and Ford 4-speed electronic overdrive transmissions are simple in operation. They have four speeds, with the top gear being an overdrive; and all have a lockup torque converter that eliminates any slippage when the lockup is applied. With a stock torque converter, the lockup should only be applied under light throttle conditions or excessive wear will occur. Upshifts, downshifts, and torque converter lockup are based on vehicle speed and throttle position (or optionally the MAP sensor) and are adjustable with the 3.5 in. touch screen. P/N 551-100: Replacement controller unit only P/N 551-101: Controller unit and power harness only P/N 551-102: Standalone kit for carbureted applications (includes power harness and hand-held programmer) P/N 551-103: Controller unit and power harness for use with Sniper 2 EFI systems Holley Sniper Transmission Controller features: * Adds electronic transmission control functionality to a Sniper 2 * Controls conventional electronic 4-speed transmission applications. GM 4L60/70/80E and Ford AODE and 4R70W - transmission specific harnesses sold separately: -- 558-405 – GM 4L60/70/80E -- 558-455 – 2009+ GM 4L60E -- 558-470 – 1998+ Ford 4R70W/4R75W -- 558-471 – 1992-1997 Ford AODE/4R70W * Tuning is performed through the 3.5 in. touch screen LCD (included with the Standalone version). Future compatibility will include 5 in. display and Bluetooth module * Tune upshifts, downshifts and WOT shift points * Full programmability of torque converter lockup * Full tuning of transmission line pressure (shift firmness) * Controls and layouts interface mirror Dominator and Terminator X MAX ECUs (except no paddle shift) * A MAP sensor is needed if using MAP for line pressure, which is usually only done with forced induction applications
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$499.95
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$728.95
Holley Sniper EFI Quadrajet self-tuning fuel injection systems are ideal replacements when you're tired of rebuilding the 50-plus-year-old Rochester Quadrajet (Q-jet) on your classic ride. They're the first bolt-on, spread-bore, EFI throttle-body systems not requiring any additional adapters, sealing plates, or intake manifold swaps. They retain the same great features as the 4150 Sniper EFI version (four 100 lbs.-hr. injectors; built-in timing control; high resolution 3.5 in. full color touchscreen; etc.). Their throttle body will support naturally aspirated power up to 500 hp. In addition, they offer multiple fuel inlet configurations that allow for a stock-appearing installation and fit most stock air cleaners. Modernize your Q-jet-powered classic vehicle with a Holley Sniper EFI Quadrajet self-tuning fuel injection system. They are offered individually or in Master kits with external fuel pressure regulator preset to 58.5 psi, 20 ft. of 3/8 in. Vapor Guard fuel hose, fuel pump, filters, necessary hardware, and bulkhead fitting to return fuel into the tank. Features, items, and specs: * Designed to deliver the signature "Rochester Roar" at wide-open throttle! * Throttle body-mounted ECU–no extra boxes to mount * Only 4 wiring connections required (battery positive and negative, switched ignition, and rpm) * Transmission provisions on throttle lever for TH350/TH400 and 200R4/700R4 * Universal throttle and transmission kick-down bracket * Brake booster adapter (if required) * Simple calibration wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own—no laptop required) * Internal fuel pressure regulator preset to 58.5 psi * 20 ft. of 3/8 in. Vapor Guard fuel hose * Fuel pump and filters * Necessary hardware and bulkhead fitting to return fuel to the tank * Genuine Bosch LSU 4.9 wide-band oxygen sensor provides real-time fuel map learning * OEM-style throttle position sensor (TPS) and idle air control (IAC) for years of dependable service * Clamp-on oxygen sensor kit ensures leak-free oxygen sensor installation with stainless steel T-bolt clamps and weld-ready oxygen sensor flange * United States Coast Guard approved (certified to ISO 8846, SAE J1171 requirements) * Available in three finishes--Classic Gold, Shiny, and Black Ceramic
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$1,649.95
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$1,949.95
Holley Sniper EFI HyperSpark CD ignition boxes are the perfect ignition upgrade to complement your Sniper EFI installation. With minimal wiring, these units are ready to plug-and-play with your Sniper system. Holley Sniper EFI HyperSpark CD ignition boxes feature: * 135mJ of spark energy when used with the HyperSpark ignition coil; ensures complete combustion * Box is sealed and powdercoated to be installed in the harshest of locations * External LED helps verify 12 V, cranking rpm, and low battery voltage * Very low key-off current (<150uA); your battery won't drain during storage periods
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$399.95
On Sale
Holley Sniper offers OE-style 255 lph EFI fuel pump modules for a wide range of vehicles, including many Chevy, Pontiac, Buick, Oldsmobile, GMC, Ford, Mercury, Jeep, Dodge and Plymouth cars and trucks from the 1950s, '60s, '70s, and '80s. These in-tank modules are high-pressure units that flow 255 liters per hour (LPH) and are capable of supporting electronic fuel injection (EFI) engines producing up to 550 hp. A pre-calibrated fuel level sending unit designed to work with the factory fuel gauge for this application is included. Each module also features a HydraMat filter which has a unique internal reservoir that keeps fuel available at the pick-up and also provides protection from contaminates. Fuel pressure is internally regulated to 58 psi, eliminating the added expense and effort of purchasing and installing an external fuel pressure regulator; no separate return line is required because these modules return excess fuel right inside the tank! The Holley Sniper EFI fuel pump module was designed as a direct replacement for your factory pick-up and sending unit. There's no need to purchase a custom EFI fuel tank. You can even retain the factory fuel hard line—just connect the outlet of the pump module to the hard line on your vehicle with EFI-rated fuel hose and hose clamps available in the Earls Vapor Guard line.
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$484.95
$259.95
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$525.95
Holley Super Sniper EFI Stealth 4150 fuel injection systems are what you need to convert your vehicle to fuel injection. Holley Super Sniper Stealth 4150 systems will also look great under the hood in your choice of shiny, ceramic black, and classic gold finishes. Features and benefits include: * Compatible with draw-through or blow-through forced induction applications * 2 Bar MAP sensor * Integrated ignition timing control * -6AN fuel inlets * High-resolution full color touchscreen for initial setup, tuning, and gauge displays * Simple calibration wizard--answer a few questions about your engine and it creates the base map, then starts tuning on its own! No laptop required * Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI * The included genuine Bosch LSU 4.9 wideband oxygen sensor provides real time Fuel Map Learn * Three programmable 0-5 V sensor inputs for oil/fuel/dome or nitrous pressure or other critical information * Six programmable ground outputs, five programmable ground inputs. These can provide the ECU with an input to turn on function, such as an ignition timing * One +5 V reference output, +5 V power supply for 0-5 V sensors, one sensor ground supply for 0-5 V sensors * Throttle body mounted ECU--no extra boxes to mount * Only 4 wiring connections required--battery +, battery -, switched ignition, and rpm * Required external fuel pressure regulator, 12-886 is recommended * OEM-style TPS/IAC, for years of dependable service * Included clamp-on oxygen sensor kit for 2.250 in. exhaust ensures a leak-free oxygen sensor installation, with stainless steel T-bolt clamps and a stainless steel (weldable) oxygen sensor flange
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$2,099.95
Want to make the switch from the original Sniper EFI to Sniper 2 and don't want to rewire your system? The new Holley Sniper 2 fuel injection upgrade kits are designed to do exactly that! Included with each Sniper 2 plug-and-play upgrade system is an adapter solution that connects your existing Sniper EFI wiring harness to a Sniper 2 throttle body in minutes. Simply remove your Sniper EFI throttle body from the intake manifold, unplug all connectors, reinstall the Sniper 2 throttle body, and plug the Sniper EFI 2 adapter harness into your existing main harness. Cycle your ignition key, run a fresh wizard on the display of your choice, and enjoy the benefits of Sniper 2 EFI. The #1 EFI conversion system just got better! Introducing Sniper 2 EFI—a self-tuning, easy-to-install, EFI conversion for common 4-barrel (4150 flange) style carburetors. Holley took everything that they learned from the original Sniper EFI system and added 14 new features that will make your EFI conversion simpler, more reliable, and modern. Like all Sniper EFI systems, Sniper 2 is designed to work with the Sniper ecosystem that includes Hyperspark ignition, complete fuel systems, multiple user interfaces/dash displays, and more. Make your classic drive like a modern fuel injected vehicle, including easy cold starts, smooth drivability, and improved fuel economy! Sniper 2 is designed to be installed at home in your garage with limited tools and the support of Holley's comprehensive installation manual and videos. The user-friendly setup wizard allows you to answer a few simple questions about your engine and the system will self-tune with no laptop or tuning required. If you're looking for a high-performance fuel injection system that delivers power, efficiency, and ease of use, look no further than the Sniper 2 EFI. Four total upgrade kits are available: polished and black, with or without external fuel pressure regulator (required for Sniper 2). Upgrade kit features: * Update your Sniper EFI to the new, improved Sniper 2 in less than one hour! * Eliminates the need to rewire your existing installation; one step, plug-and-play upgrade to a Sniper 2 * Improve your ride with the Sniper 2, including wireless connectivity, smooth throttle feel, improved RF resistance, and a hidden wiring harness. * Reuses existing coolant temperature and oxygen sensors * Female -6 AN O-ring fittings for a tight seal * Overall height is only 3.280 in. to fit under most hoods * Supports up to 650 hp naturally aspirated or 575 hp on boost with four 100 lbs.-hr. injectors * Requires 55-65 PSI of regulated fuel supply * Next generation ECU features improved RF noise and interference resistance (stands up to old car wiring, noisy alternators, faulty plug wires) * Redesigned throttle shaft and plate geometry for a smoother throttle feel * Sniper 2 is part of the Sniper EFI complete ecosystem * Available with fuel system kits: that include an adjustable external regulator, fittings, and a 3 ft. section of fuel hose, allowing you to easily mount your regulator in the engine bay Additional NEW features: * Integrated transmission kickdown provisions for GM TH350/400, 200-4R/700R4 and Ford C4/C6 applications * "Hidden Harness" wiring exit from the rear of throttle body for a clean appearance * Inputs and outputs consist of: 2x ground inputs, 2x ground outputs, 1x TPS output (0-5 V), and 1x tach output * Redesigned injector connector for improved reliability * Onboard contactless magnetic TPS sensor ensures an accurate TPS reading * Next generation mil-spec style M8 positive lock connector for CAN1 and CAN2 provides the latest in CAN bus technology for a simple yet robust connection * Cast-in fuel crossover from the primary to secondary fuel rail * Sniper 2 throttle bodies are serialized, which provides an improved experience in the event of any unit needing to be inspected
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$999.95
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$1,399.95
Holley Sniper EFI BBD master kits will be right at home on any powered trail rig or weekend cruiser. Not only does the Sniper EFI BBD offer superior throttle response and WOT power over the carburetor, but you can also gain timing control! Put an end to cold start issues, hesitations, vapor lock, and flooding—upgrade to Holley Sniper EFI. Features include: * Bolt-on BBD carburetor replacement * Engineered specifically for 1971-86 Jeep CJs with 258 cu. in. 6-cylinder engines * Throttle body-mounted ECU--no extra boxes to mount * Supports up to 350 hp with two 100 lbs./hr. injectors * Only four wiring connections required—Battery +, Battery -, Switched ignition, and rpm * Internal fuel pressure regulator eliminates the hassle of plumbing an external regulator * Includes complete fuel system: 20 ft. of 3/8 in. vapor guard fuel hose, fuel pump, filters, necessary hardware, and bulkhead fitting to return fuel into the tank * High-resolution full color touch screen for initial setup, tuning, and gauge displays * Simple calibration wizard: answer a few questions about your engine and it creates the base map, then starts tuning on its own—no laptop required! * Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI * Genuine Bosch LSU 4.9 wideband oxygen sensor provides real-time fuel map learning * OEM-style TPS/IAC and fuel pressure regulator, for years of dependable service * Included clamp-on oxygen sensor kit for 2.25 in. exhaust; ensures a leak-free oxygen sensor installation, with stainless steel T-bolt clamps and stainless steel (weldable) oxygen sensor flange * Available in Classic Gold, black, shiny polished
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$1,649.95
The Holley Sniper 3.5 in. LCD touch screen controller gives you access to a wide range of tuning options. These hand-held controllers can be used as a fully customizable data monitor—and with the unit's 3.5 in. display, your Sniper EFI system vitals can be viewed at a quick glance! Features and benefits include: * Full color, backlit 3.5 in. touch screen LCD * Laptop-free tuning changes to help optimize mileage, drivability, and performance * Basic tuning options allow simple adjustments of basic fuel, fuel learn, basic idle, spark, and more * System tuning options allow modifications to outputs, engine setup, ignition setup * Advanced tuning options allow fine-tuning of fuel, closed loop, learn, and idle—including IAC parameters and idle spark * Monitor a vast number of parameters in pre-configured, multi-gauge, and monitor screens—or customize your own * Set up ECU data-logging, download data-logs to SD card, upload and download global folders via SD card, update ECU firmware, and adjust rev limiters 1 and 2 * Includes 3.5 in. touch screen, mounting sleeve, power and extension harness, and SD card
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$390.95
Holley Sniper EFI HyperSpark distributor kits were designed to make upgrading your ignition on a Sniper EFI-equipped engine simple. When installed concurrently with a new Sniper EFI system, the combination creates the easiest way to install EFI conversion on the market—and only four flying lead connections are required! The harness only requires one connection to a switched power source, battery positive, battery negative, and fuel pump power. The pre-terminated connectors and a built in 40A relay provides power to all of the components within the system. With the included Sniper EFI main harness you no longer need to run multiple wires to provide switched power for each individual component, which not only helps prevent wiring confusion, but it will also speed up your install time and clean up your engine bay. Simply route the harness and pre-terminated connectors to your HyperSpark coil, distributor, and ignition box and plug them in. Available for all popular engine combinations, these kits come with a distributor, coil, ignition box, and an integrated Sniper EFI harness. Order the application you need. Key features: * Plug-and-Play Sniper EFI main harness replaces the standard Sniper EFI harness with four loose leads, battery positive, battery ground, switched 12 V, and fuel pump power, for a simple and streamline installation * Designed for existing or new Sniper EFI installations (the HyperSpark Master Kit harness retains the same flying lead wire colors as the Sniper EFI main harness; new installations will not use the Sniper EFI standard harness or coil driver * Complete ignition system in a box, including: HyperSpark ignition box, HyperSpark ignition coil, HyperSpark distributor (for your application), and a plug-and-play main harness * HyperSpark distributors feature a Hall Effect crank trigger sensor providing a noise-free rpm signal to the Sniper ECU * Patented clear installation cap eliminates any confusion while installing the distributor * HyperSpark CD ignition box is seal and powder coated to be installed in the harshest of locations * External LED on HyperSpark CD Ignition box helps verify 12 V, cranking rpm, and low battery voltage * 135mJ of spark energy when used with the HyperSpark ignition coil, ensures complete combustion * Integrated ignition coil bracket simplifies mounting the Ignition coil * Ignition coil connector removes any doubt of loose connections at the Ignition coil * Enables timing control on a Sniper EFI Installation
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$999.95
On Sale
One of the most popular updates for an older vehicle is swapping out the carburetor for electronic fuel injection (EFI); but using an external pump to supply the high pressure needed for EFI can be a problem. External pumps are loud and often difficult to mount properly. Holley Sniper EFI conversion fuel tanks are the complete bolt-in solution for your EFI conversion. They're a direct-fit for a wide variety of specific applications, require no modifications, and include either a 255 lph or 400 lph submersible pump, a fuel level sender, and internal baffles. For the fuel you need with in-tank quietness, order a Holley Sniper EFI conversion fuel tank. Features include: * 255 lph model supports up to 550 hp * 400 lph model supports up to 750 hp * 60 psi at 13.5 V with a 10.4 amp draw * Made of coated, galvanized steel that is also silver powdercoated for corrosion protection * Fuel pump hanger assembly included * Sender has 1/4 in. NPT supply and return line ports for easy fuel line connection * Barbed vent fitting * Sending units have the correct ohm range for factory gauges * Fuel pump and sender are recessed into the tank * EFI-style tank baffling includes a 4.3L internal fuel tray to prevent starvation * Fits and looks like an OE tank when installed * Include new tank straps, where applicable
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$949.95
$617.95
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$1,049.95
On Sale
Do you need to upgrade your ignition system due to a recent Sniper EFI installation, but have no idea which option is best? Introducing Holley Sniper EFI HyperSpark distributors. These billet distributors use a hall-effect crank signal sensor, providing a noise-free RPM signal to the Sniper ECU. HyperSpark distributors include a patented clear installation cap that eliminates any confusion when installing the distributor. They're an easy plug-and play solution to add timing control and complete your Sniper EFI installation. Many options are available; choose the model recommended for your year/make and engine application.
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$499.95
$274.95
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$699.95
Holley Sniper in-tank retrofit fuel pump modules offer the easiest way to convert your vehicle to an in-tank EFI fuel system. Available in return and returnless versions, these 340 lph pumps are easy to install with basic hand tools and require no welding or fabrication. They include a diecast pump hanger bracket to control pump vibration in a low-profile design that's perfect wherever space is at a premium. You can locate the module beside your existing sending unit anywhere in the tank and rotate it a full 360 degrees to work flawlessly with various plumbing and wiring configurations. Once the module is installed, all you need to do is connect your power source/ground and fuel lines. Up your fuel game with an assist from the Holley Sniper in-tank retrofit fuel pump modules best suited for your application. Features and specs include: * Models available for various fuel tank depths, including adjustable (7-12 in.) versions * The low-profile design is only 1.275 in. thick above the tank mounting surface for added clearance when needed * The innovative clamping system allows you to locate the module anywhere in the tank beside your existing sending unit and rotate the unit 360 degrees for easier clocking of the plumbing and wiring locations * Diecast aluminum construction for corrosion resistance and long-lasting good looks
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$315.95
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$649.95
Holley Sniper EFI Stealth 4150 fuel injection systems feature four 100 lb.-hr. fuel injectors capable of supporting up to 650 hp naturally aspirated. The Sniper Stealth 4150 ECU is capable of fuel map self-learning and ignition timing control--improving idle stability, drivability, and wide-open throttle horsepower! These systems also include transmission kickdown provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications. The 4150 is available individually or in a complete Master Kit (see contents listed below). ALL Sniper EFI Stealth 4150 systems feature: * Bolt-on 4150 flange carburetor replacement * Throttle body mounted ECU; no extra boxes to mount * Supports up to 650 hp with four 100 lb.-hr. injectors * All of the wiring exits below the rear fuel injector cover—for a completely stealth installation * Timed spark part for vacuum advanced distributors located under the front fuel bowl—for easy access to the distributor * Air entry is machined to fit most stock-style air cleaners with air cleaner locator provisions * Only four wiring connections required (battery +, battery -, switched ignition, and RPM) * External fuel pressure regulator required, set to a base pressure of 58.5 psi, such as 12-886 * Integrated ignition timing control * High-resolution full-color touch screen for initial setup, tuning, and gauge displays * Simple calibration wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own); NO laptop required * Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI * The included genuine Bosch LSU 4.9 wideband oxygen sensor provides real-time fuel map learn * OEM-style TPS/IAC and fuel pressure regulator, for years of dependable service * Included clamp-on oxygen sensor kit for 2.25 in. exhaust ensures a leak-free oxygen sensor installation, with stainless steel T-bolt clamps and a stainless steel (weldable) oxygen sensor flange * Available in three finishes: shiny, ceramic black, and classic gold MASTER KITS also include complete fuel system with an external fuel pressure regulator preset to 58.5 psi, 20 ft. of 3/8 in. Vapor Guard fuel hose, fuel pump, filters, necessary hardware, and bulkhead fitting to return fuel into the tank.
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$1,449.95
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$1,799.95
Holley Sniper BBD 2-barrel fuel injection systems offer not only exceptional throttle response and outstanding power gains over a carburetor, but you can also gain timing management. Put an end to cold start issues, hesitations, vapor lock, and flooding. Enjoy all the benefits of EFI by upgrading to this Holley Sniper system—with performance and economical pricing Jeep owners want! Features include: * Bolt-on BBD carburetor replacement * Engineered specifically for 1971-1986 Jeep CJ's with 258ci 6-cyclinder engines * Supports up to 350 hp with two 100 lb./hr. injectors * Throttle body mounted ECU (no extra boxes to mount) * Only four wiring connections required (battery+, battery- , switched ignition, and rpm) * Integrated ignition timing control * Simple calibration wizard * High-resolution full-color touch screen for initial setup, tuning, and gauge displays * Internal fuel pressure regulator (preset to 58.5 psi) eliminates the hassle of plumbing an external unit * Self-tuning ECU * OEM-style TPS/IAC and fuel pressure regulator * Bosch LSU 4.9 wideband oxygen sensor (provides real-time fuel map learn) * Clamp-on oxygen sensor kit and all hardware for installation
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$1,349.95
Holley Sniper E85 in-tank electric fuel pumps are high-output models that fit the most popular EFI applications. The pumps can be regulated to support carbureted systems, as well, and all are compatible with gasoline or E85. Designed for applications requiring more fuel flow (utilizing the factory OE lines and mounting brackets), the 340 lph fuel pumps can also be used as a universal replacement—or upgrade for aftermarket applications requiring more fuel flow to support additional horsepower, while using power adders. Order the model recommended for your vehicle. Features include: * 340 lph E85-compatible * Designed for in-tank use only * Compact enough to fit in existing hanger assemblies without modification * Complete kit with all drop parts, accessories, and installation instructions * Filter, wiring pigtail, rubber hose, clamps, and rubber grommet included * Inlet filter meets or exceeds original equipment specifications and provides improved filtration/durability * Can be used with carbureted or EFI applications * Perfect upgrade for aftermarket pumps, like Holley retrofit EFI modules, when more fuel is needed with turbos or nitrous
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$162.95
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$169.65
Holley Sniper 2 EFI 5 in. digital dash displays come out of the box, ready to plug-and-play with your Sniper 2 EFI ECU. The 5 in. digital touch screen display is pre-loaded with three easy-to-read layouts that provide critical system information, thanks to the provided magnetic GPS antenna. Also included is the same handheld wizard as the 3.5 in., tuning, and data logging, along with two dash mounting stand offs and a suction cup, allowing you to quickly mount the dash to most flat surfaces in the vehicle, without drilling any holes. Additional notes and features: * Compatible only with Sniper EFI 2 Products * Next Generation mil-spec style M8 positive lock connector for easy and secure installation * Built-in Calibration Wizard allows you to quickly build a base engine calibration for your Sniper 2 EFI powered vehicle, without the need of a laptop * Three default background skins pre-loaded with the option to customize the existing layouts to read exactly what information you want to see * Quickly swipe between multiple monitor screens, with customizable parameters (tune, warm-up, race, drive, etc.) * Provides Real-time ECU tuning, allowing you to dial in your AFR, Ignition Timing, or any other handheld tune able value, such as IAC or Acceleration Enrichment * Expandable storage via included micro-SD, allowing quick access to ECU calibrations, datalogs, or any other files you may use with your Holley EFI system * Capacitive touch--no stylus required * Convenient dimming feature for nighttime driving, simply press the Sniper EFI icon on the background to quickly dim or brighten the screen
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$449.95
On Sale
Holley Sniper stock replacement fuel tanks are designed to meet or exceed the quality of your factory original. Whether you have a track or street car, or a car you're restoring, Sniper has the high-quality fuel tanks you're looking for. Start your fuel system project fresh with a Holley Sniper stock replacement fuel tank—order the model designed for your application. Features include: * The steel fuel tanks have a galvanized finish for corrosion protection and good looks * Stock replacement fuel tanks are made to OEM specifications for a great fit * Perfect companions with Holley muscle car EFI modules or Retrofit EFI pump modules * Tank sending unit lock ring is included
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$286.95
$99.95
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$367.95
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