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On Sale
Holley USB cables are sealed against dirty environments. These connector cables are designed to fit select Holley EFI systems. If your system's ECU is mounted in not-so-clean areas, use Holley sealed USB cables.
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$80.49
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$92.19
$72.45
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$82.95
On Sale
Holley main power ignition harnesses are designed for use with your Holly EFI systems. These wiring harnesses work with other Holley components to correctly configure your EFI system.
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$104.95
$94.45
On Sale
Holley EFI Terminator X fuel injectors feature a precision lapped disc valve, high-quality brass windings, and high-temperature O-rings. These injectors provide excellent linearity with no discernible "bounce" at low pulse widths as commonly found in other injectors. With a wide variety of fuel flow offerings from 42 lb./hr. to 220 lb./hr. you are sure to find an injector that matches your non-emissions-controlled application. Holley EFI Terminator X fuel injectors can also be used with any ECU that utilize high-impedance fuel injector drivers. Features: * PICO/EV6-style performance injectors are sold individually or in a set of 8 * High impedance for use with saturated drivers * Rated injector flow 220 lb./hr. at 43 psi of base fuel pressure * USCAR injector connector * 40mm O-ring to O-ring length * Compatible with many OEM LS intake manifolds * Easy to install in any Holley EFI Hi-Ram intake, using Holley fuel rail adapter kit
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$71.29
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$92.19
$64.15
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$82.95
On Sale
Holley offers a variety of direct replacement EFI wiring harnesses, including multi-port, sequential, and throttle body injection styles. These units are made with premium components to ensure better reliability and performance for your ride--and they're compatible with many engine swaps. Holley EFI systems wiring harnesses are sold individually or as a kit; choose the model needed for your fuel injection application.
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$99.95
$89.95
On Sale
Holley throttle body angle adapters resolve problems. The considerable angle of the LT intakes can cause issues routing inlet plumbing and clearance to aftermarket accessory brackets. These adapters level the throttle body for swap applications without changing the flow the GM design intended. Other four-bolt intakes with routing issues can also benefit from this adapter. Features and benefits of Holley throttle body angle adapters: * Billet aluminum construction * Maintains proper throttle body blade orientation * Eliminates drivability issues associated with inverting the throttle body * Allows clearance to aftermarket accessory brackets or other clearance and routing issues * No harness rerouting or extending required * Works with both truck and car LT intake bolt patterns * Works with all 4-bolt LS intake bolt patterns * Works with up to 95mm intakes and throttle body openings * Works with common LS and LT 104 x 70mm bolt pattern throttle bodies * Adapts common LS 104 x 70mm bolt pattern throttle bodies to LT 5.3L truck intakes * Works with Holley 92/95mm Hi-Ram and Mid-Ram intakes * Allows use of cable-operated and other throttle bodies on Gen V 5.3L intakes
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$90.39
$81.35
On Sale
Holley throttle cable brackets are a nice finishing touch for street rods, street machines, or street/strip cars and trucks. The brackets are available in a variety of mounting styles, and for use with nearly a dozen carburetor models. Brackets for fuel injection style applications are also offered. Choose from among materials and finishes like anodized aluminum and chrome or plated steel. These throttle cable accessories can be ordered for universal or carb-specific replacement.
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$59.25
$53.35
On Sale
Holley Sniper EFI input/output wiring harnesses give you the access to two ground trigger inputs and three ground trigger outputs. These harnesses also include the points output, tachometer output, and digital gauge output wires. The input grounds can be used for things, such as A/C kick-on and nitrous stage activation! The output grounds can be used for electronic fan control, or A/C shutdown at wide open throttle. Features: * Wires are individually labeled for easy identification * Two 3 ft. long inputs wires * One 3 ft. long output wire * Two 5 ft. long output wires * One 5 ft. tachometer output * One 3 ft. points output wire * One 5 ft. long digital gauge output for Holley EFI analog gauges
Not Yet Reviewed
$64.49
$58.05
On Sale
FUELAB high-flow, one-way check valves are designed to deliver maximum flow with minimal restriction and pressure drop. Featuring -6 AN, -8 AN, and -10 AN male inlets/outlets, 350 gph flow capacity, cross fuel compatibility, and billet aluminum construction, these advanced engineered FUELAB valves allow for easy installation and prevent flow back after pump shut down. The check valves are rebuildable, have fluorosilicone seats and seals, and a maximum pressure rating of 200 psig.
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$91.00
$74.70
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$81.90
On Sale
Muscle car enthusiasts who appreciate performance EFI systems have come to rely on Holley for enhanced power, fuel economy, and overall engine efficiency. To get the benefits of sharing EFI operating system information, you'll need one of these Holley EFI CAN connector kits. Designed for easy installation, CAN extension harnesses make for a quick wiring setup.
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On Sale
Holley GM distributor wiring harness adapters are designed to connect the distributor to the Holley ECU. They fit all digital interactive Holley Pro-Jection and Commander 950 fuel injection systems. The harness adapters will allow the use of the ignition control feature that is part of the Holley ECU.
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$59.25
$53.35
On Sale
Holley EFI throttle body adapters are offered individually allowing you to select your components as you build your intake system. They work with a wide range of intake configurations and come in different sizes depending on your throttle body. Simplify the process of getting your intake system set up with Holley EFI throttle body adapters.
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$92.19
$82.95
On Sale
Holley electronic fuel injectors deliver the performance and quality that you expect when you see the Holley name. They're available either as replacement items to take the place of failed or damaged parts, or as upgrade and tuning items to boost fuel flow when you're cranking up the power in your engine. Many different options are available, including more than a dozen lbs./hr. advertised flow rates. Select the model best suited for your application.
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$106.95
$96.25
On Sale
Holley Sniper EFI fuel injectors provide excellent linearity with no discernible "bounce" at low pulse widths, as commonly found in other injectors. They feature a precision-lapped disc valve, high-quality brass windings, and high-temperature O-rings. Order a set of eight Holley Sniper EFI performance fuel injectors for use with your Holley EFI intake manifold. Features: * PICO/EV6-style performance injectors * High impedance (12.2 ohms) for use with saturated drivers * Rated injector flow: 36 lbs./hr. at 43 psi * Supports up to 575 hp (maximum) * Tri-cone spray pattern * Not intended as service injectors for Sniper EFI TBI product line
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$86.95
$78.25
On Sale
These Professional Products Power throttle bodies are made from permanent mold castings of 356 aluminum and feature a hand-fitted butterfly plate for ideal idle control. These Power throttle bodies are offered in a polished or satin finish and are available for several applications.
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$95.99
$86.39
On Sale
Holley EFI fuel pulse dampers act in tandem with the fuel pressure regulator to further control the fuel pressure in an EFI system. They act to smooth out the pressure pulsations caused by the injectors opening and closing as well as the fuel pump operating. These pulsations happen so quickly that in many cases they can't be identified with an analog gauge but can cause issues with fuel delivery to the engine. Options include: * Direct-mount or inline mount * Multiple inlet/outlet dimensions * Standard or extended fuel pressure range * Male or female threads Features: * Engineered to stabilize pressure pulsations caused by the injectors opening; ideal for applications with large fuel injectors and high-volume fuel pumps * Compatible with any fuel; full anodized billet aluminum construction with stainless steel springs and fluorosilicone diaphragm * Fittings included for damper/regulators and direct-mount dampers * 1/8 in. NPT port on body of damper/regulators and inline dampers for easy installation of mechanical pressure gauge or pressure transducer * Vacuum fitting and one foot of hose included with all dampers for vacuum referencing
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$106.95
$96.25
On Sale
ACCEL Performance fuel injectors provide precise control of fuel delivery and atomization for increased power, improved throttle response, and better fuel economy. They feature either a high or low-impedance design to function accurately with your vehicle's ECU. ACCEL fuel injectors come complete and ready for installation with precision-molded O-rings and fine-mesh fuel strainers. More product features and notes: * Utilize a new low-mass disc design that ensures a spray pattern for ultra-fine atomization and improved burn efficiency * Higher than stock flow rates may require reprogramming
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On Sale
These JET Powr-Flo throttle body spacers use aerospace engineering combined with years of experience. The exceptional design of the bore causes the incoming airflow to actually smooth out and speed up. This creates a type of compacted air-charge that enters through the throttle body and builds pressure in the combustion chamber. This will result in an extensive gain in the midrange power band and an overall increase in fuel economy.
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$87.25
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$97.84
On Sale
MSD Atomic AirForce throttle body adapters are designed to attach an OEM LS1/LS6 factory throttle body to an MSD Atomic AirForce polymer intake manifold. They're made from quality materials and install onto the MSD Atomic AirForce with no modifications.
( 1 )
$77.85
$58.39
On Sale
Holley Sniper throttle body spacers provide additional clearance. Topping a Sniper EFI fabricated intake manifold with your stock throttle body may mean that a little more room is needed for proper operation. These spacers will do the trick. They can also be used with stock manifolds to provide additional horsepower and throttle response. Holley Sniper throttle body spacers are machined from billet aluminum (with different finishes) and include O-rings with hardware. Order the model recommended for your vehicle application.
Not Yet Reviewed
$105.95
$58.95
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