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Holley EGT bungs are quality replacement service parts designed exclusively for use with Holley's 8-Channel Exhaust Gas Temperature Monitoring kit (sold separately). Made from 316 stainless steel, these weldment bung fittings feature a built-in step—which keeps the bung held in place during the welding process, ensuring a perfect weld. They're sold individually or in multiple-piece count sets.
Not Yet Reviewed
$184.95
Holley bypass fuel pressure regulator kits are part of a complete line of fuel system products from Holley. Offering several different kits, each features a billet or diecast aluminum regulator with an adjustable psi for precise fuel pressure changes and they are finished for corrosion resistance and good looks. The regulators are fitted with a 1/8 in. NPT gauge port and include an Earl's fuel pressure gauge, three adapter fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware. Choose the kit to best fit your project's needs and performance.
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$140.95
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$162.95
Holley power steering remote reservoirs are ideal for applications that can not fit a pump mounted reservoir. These lightweight aluminum reservoirs have an internal baffle and air separator to keep the fluid from getting foamy or overflowing. Choose from two styles of reservoirs--polished aluminum model for custom and racing applications that you can fabricate a mount for or use clamps for mounting, or black finish model that includes mounting bracket. Features: * Aluminum construction * Dual inlet ports support Hydro-Boost brake systems when used with Earls pump adapters * Port sizes: (2) -8 ORB ports on top (inlets) and (1) -10 ORB port on the bottom (outlet) * Includes fittings: (1) -6 AN Male flare to -8 AN ORB, (1) -10 AN Male flare to -10 AN ORB, and (1) -8 AN port plug * Vented cap allows excess pressure to be released
( 5 )
$178.95
Holley 100 gph in-line electric fuel pumps are designed for high-output naturally aspirated and forced induction EFI and carbureted vehicles. They support up to 900 EFI or 1,050 carbureted horsepower, and is compatible with pump gas, race gas, diesel, or E85. The pumps utilize inlet and outlet connections that make installation easy on new applications and quick replacement of existing competitor fuel pumps. Holley universal 100 gph in-line electric fuel pumps include a male -6 to -8 AN discharge fitting with integral high-pressure check valve, terminal nuts, terminal boots, and installation instructions. Additional features and specs: * Roller vane design provides fuel pressure and volume to support up to 900 EFI N/A or 700 EFI boosted horsepower * Compatible with Flex Fuel (E85/E90) and all types of gasoline (100 percent alcohol fuels may diminish fuel pump life) * Inlet thread is -10 AN female ORB (O-ring port fitting) and discharge is a female -6 AN ORB
( 24 )
$217.95
Holley EFI fuel system plumbing kits are the perfect complement to your Sniper EFI or Holley EFI kit. These plumbing assemblies are engineered using Holley fuel pumps, regulators, and filters—coupled with Earl's Performance plumbing, to provide a fuel system tailored to your vehicle's specific needs. Components vary, depending on the kit you select.
( 34 )
$249.95
On Sale
The amazing HydraMat fuel pickups feature Holley's patent pending design that solves the problems associated with traditional fuel pick-ups in stock fuel tanks, as well as racing fuel cells. During hard cornering, acceleration, stopping, inclines, and low fuel conditions fuel runs away from the fuel pick up which introduces air into the system resulting in poor engine performance and even stalling. The Holley HydraMat fuel pickups are the solution! Surface tension and fluid wicking are the secrets of the HydraMat, giving it the amazing ability to draw from nearly any area that has contact with fuel and then store it in its internal reservoir. As an area of the HydraMat is uncovered, the tiny pores of the media seal off through surface tension, forcing fuel to be contained in the reservoir and drawn from other areas of the mat where fuel continues to be available. The sheer size and coverage area of the HydraMat allows it to pull fuel from virtually any area in the tank or cell eliminating the need for specialty reservoirs and pick up pumps saving cost and greatly reducing complexity. Holley HydraMats are available in various sizes and shapes to fit a wide variety of stock fuel tanks and/or race fuel cells. Features and benefits: * Patent pending design that solves the problems associated with traditional fuel pick-ups in stock fuel tanks as well as racing fuel cells * Greatly reduces the potential for air to enter into the fuel system which can result in poor engine performance and/or engine stalling * Perfect for vehicles experiencing fuel starvation during hard cornering, acceleration, stopping, inclines, and low fuel conditions * Surface tension and fluid wicking allow the HydraMat to continue to draw fuel from the tank or cell even when part of the mat uncovered * As an area of the HydraMat is uncovered, tiny pores in the media seal off through surface tension, forcing fuel to be drawn from other areas of the mat where fuel continues to be available * Unique internal reservoir assists in keeping fuel available at the pickup even under extreme fuel slosh conditions * Eliminates the need for specialty reservoirs, sumps and pick up pumps saving cost and greatly reducing complexity * Also acts as a 15 micron pre-filter eliminating the need for a separate filter before the fuel pump * Can be folded and compressed for easy installation through a variety of fuel cell openings * HydraMats are also available in other sizes and shapes to fit a variety of stock fuel tanks and/or race fuel cells * Not for use with diesel fuels
( 64 )
$226.95
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$249.95
Holley Sniper EFI Stealth fuel crossover kits are designed to be used with either Sniper EFI Stealth 4150 or Terminator X Stealth 4150 systems. These pre-assembled fuel crossovers are designed to provide ample clearance between the fuel hose, and the TPS sensor mounted on the side of the throttle body. Available in two variations, both contain a braided fuel hose with crimp-on ends for a leak-free installation and two fuel bowl standoffs. One variation includes a T-fitting and the other a black anodized billet fuel regulator, preset to 58.5 psi, and a mounting bracket.
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$127.95
These machined aluminum EFI fuel rails are capable of handling 1,100+ hp engines. They feature a large inner diameter bore to decrease fuel pressure drop and help cancel out back pulses.
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$228.95
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$240.95
Holley offers a selection of both dedicated and universal-style fuel lines for their carburetors. Hard lines are chrome plated and double flared at the outlets. Braided stainless steel lines offer premium features such as rugged billet-style construction and AN aluminum fittings.
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$113.95
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$266.95
Holley offers replacement heater hose adapters for high-mount accessory drive systems. They are designed to fit the Holley 7.3L Godzilla engine, which makes them ideal for engine swaps. Mounting hardware included.
Not Yet Reviewed
$113.05
On Sale
Holley power steering hard lines offer a clearance solution. The pressure hose connection on the Type II power steering pump is really close to the pulley making it difficult to attach the hose. Holley power steering hard lines move the connection behind and below the pump for clearance and improved appearance. The special banjo bolt and crush washers provide additional clearance. Holley also includes a mounting bracket that makes the hardline stronger and less likely to crack from vibration or abuse. The kits are made from strong steel and zinc plated.
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$119.95
Holley Sniper EFI fuel rails hit the mark every time--on time! It's not enough to shoot fuel to your injectors; the process must be consistent and precise for efficient engine performance. Holley Sniper kits will deliver the performance, and they feature billet aluminum rails with a black anodized finish and a laser-engraved Sniper logo. If your target is the optimum delivery of fuel, equip your manifold with Holley Sniper EFI fuel rail kits.
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$189.95
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$212.95
Part of Holley's complete line of fuel system products, Holley HP billet fuel pressure regulators are available in a variety of configurations for carbureted or fuel injected engines. Some versions are even adaptable to either carburetors or EFI. They allow you to upgrade a carbureted system to EFI without replacing the fuel pressure regulator. All HP billet fuel pressure regulators feature a 2-port design, provide for precise fuel pressure adjustments, and are available in your choice of demand (no return line) or by-pass (with a return line) styles. Depending on the model, they are for use only with electric fuel pumps, or with either mechanical or electric pumps. Designed for street/strip applications, they are CNC-machined from 6061 T-6 billet aluminum for strength and have bright dip anodized black bodies with clear dip anodized tops for corrosion resistance and good looks. Whatever your fuel system needs, Holley has you covered. Depending on model, features may include: * Adjustable from 4 to 65 psi for use with EFI or carburetors * 4.5 to 9 psi adjustment range for use with carburetors only * EFI-only models are adjustable from 15 to 65 psi * Two port sizes available, 3/8 in. NPT or -6 AN inlet/outlet and return (where applicable) * Fitting for manifold reference * 1/8 in. NPT gauge port * Boost reference--1:1
( 160 )
$149.95
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$260.95
Holley billet EFI return-style fuel pressure regulators are space saving options when mounting on the end of the fuel rail or near the throttle body. They are preset at 59.5 psi, and the cap can be removed and re-oriented to suit the desired fuel routing. These Holley EFI fuel pressure regulators feature 6061 T-6 billet aluminum construction, and are machined for all SAE6 ports with three -6 AN fittings included, plus an extra plug to replace one fitting when installed post throttle body/fuel rail. They are compatible with Holley Sniper or Sniper Stealth among other applications, and available with either an all-black or a black/clear anodized finish.
( 6 )
$235.95
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$249.95
On Sale
Holley boost control solenoids are designed for optimal performance when using the boost control function of Holley EFI. Some setups require two solenoids and some require one. They're driven by a Pulse Width Modulated (PWM) output of the ECU. It is advised NOT to use the PWM+ outputs on a Holley HP ECU, but rather use the PWM- outputs. If you have a Holley Dominator ECU, use either the PWM- outputs or a PWM+ output on the J2B connector.
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$182.95
$118.95
On Sale
Holley water/methanol injection system installation kits are designed for use with Holley HP and Dominator EFI systems. They are programmed for 100 percent water and up to a 50/50 percent mixture of water and methanol--never use more than 50 percent methanol in the mixture, or damage to components may result. These are installation kits only; a pump and solenoid(s) are required, as well. Kits include: * Reservoir * Low-level float * Filter * Tubing * Relay * Relay wiring fuse * Warning LED * Fittings
Not Yet Reviewed
$287.95
$158.95
Holley Sniper EFI universal bypass fuel regulators are for use with fuel systems in street or track applications. They feature adjustable base pressure from 40-130 psi, a gauge port, and a boost reference port. These regulators are ideal for vehicles/systems where superior flow and pressure control are needed. Each unit is precision-machined from 6061-T6 billet aluminum for strength and durability—and features a black, bright dip anodized body and clear bright dip anodized top for corrosion resistance and good looks. Choose from -6 or -8 AN inlet/outlet return fitting sizes. Product features: * Longer spring for wider range of adjustment (40-130 psi) * Oversized bypass orifice and corrugated diaphragm for superior flow * Constructed of billet aluminum with a black anodized base and top for good looks * Offered in -6 and -8 ORB configurations * Used in systems with a return line back to tank * 1/8 in.-NPT boost reference port (ratio 1:1) * 1/8 in.-NPT fuel gauge port * Alcohol fuel and race gas compatible * Includes mounting bracket, hardware, and an 1/8 in.-NPT barb fitting for manifold reference
( 1 )
$177.95
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$188.95
Holley Sniper air cleaner assemblies complete your Sniper upgrade. Each air cleaner assembly includes a stamped steel lid with an embossed Holley Sniper logo, a 1 in. drop base specifically designed for Sniper EFI applications, your choice of a 3 in. or 4 in. paper filter element, and all necessary mounting hardware. The drop base fits all carburetors and throttle bodies with a 5 1/8 in. neck. Holley Sniper air cleaner assemblies are available in black and chrome finishes to best match your Sniper EFI unit. Additional features: * 14 in. diameter, stamped steel construction with embossed Holley Sniper logo * Fits 5 1/8 in. diameter neck, specifically Sniper 4150 and 2300 * Color-matched 1 in. drop base with clearances for Sniper EFI 4-barrel TBI front-mounted fuel inlets; compatible with Holley Vapor Guard 90 degree -6 to 3/8 in. fittings
( 3 )
$149.95
Holley Sniper 2 EFI throttle body system CAN hubs are cutting edge connectivity solutions designed to enhance your Sniper 2 EFI system's performance and monitoring capabilities. Featuring a high-speed USB laptop connector, each hub facilitates seamless tuning, configuration, and real-time data logging. Included is one M8 Sniper ECU connector for a robust and reliable connection to your engine control unit and three M8 display connectors, allowing for multiple displays to monitor critical engine metrics simultaneously. A USB-C is also included. Holley Sniper 2 EFI system CAN hubs feature a compact and durable design, ensuring they withstand harsh automotive environments, while fitting neatly within your vehicle's engine bay or dashboard. Additional features and benefits: * Enhanced visibility -- Monitor your engine's health and performance easily with multiple display support * Stable and reliable connection -- Direct integration with Sniper ECU ensures a stable and reliable connection * Easy installation -- Plug-and-play connectivity and user-friendly installation for those with limited technical expertise * Multiple display support -- Connect up to three displays simultaneously for a comprehensive view of critical performance metrics
( 1 )
$139.95
Holley EFI universal bypass fuel pressure regulators are for use with fuel systems in street or track applications. They feature adjustable base pressure from 15-90 psi, a gauge port, and a boost reference port, as well. The regulators are ideal for vehicles/systems where superior flow and pressure control are desired. These regulators are precision-machined from 6061-T6 billet aluminum for strength and durability—and feature a black bright dip anodized body and a clear bright dip anodized top for corrosion resistance and good looks. Choose from models with -6 AN or -8 AN inlet/outlet port sizes. * Kits include a Holley fuel pressure gauge * Regulator features an 1/8 in. NPT gauge port and 1/8 in. NPT boost reference port (barbed fitting included) * Mounting bracket and fittings included
Not Yet Reviewed
$227.95
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$236.95
These Holley Pro-Jection service parts are available for today's most popular Pro-Jection kits. Whether you have an old analog or new digital system, we have the replacement parts for you. Map sensors, fuel injectors, oxygen sensors, extension cables, a variety of fittings and adapters, and many other parts are available to keep your Pro-Jection system operating efficiently.
( 2 )
$158.95
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
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$154.95
Holley's EGT caps are quality replacement service parts designed exclusively for use with Holley's 8-Channel Exhaust Gas Temperature Monitoring kits (sold separately). These EGT caps are made from 316 stainless steel and fit the Holley 1/4 in. EGT bung fittings, They're sold individually or as a set of eight.
Not Yet Reviewed
$135.95
Holley offers analog fuel pressure gauges in a variety of diameters, styles, fittings, and standard or liquid-filled versions. They feature classic faces and chrome or black bezels, depending on the model. Now you can monitor your fuel density in retro style with a Holley analog fuel pressure gauge!
( 83 )
$113.95
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$180.95
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