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Complete your EFI Hi-Ram manifold with a Holley Hi-Ram intake manifold top. These intake manifold tops, along with their matching bases, are made from cast aluminum—with either a natural or black finish. They provide a cost-effective option for your high performance applications where induction system height is not limited. Get aggressive, bold styling and performance with a Holley EFI Hi-Ram intake manifold top.
Not Yet Reviewed
$219.95
On Sale
Fit your GM Gen V LT1 Holley Hi-Ram manifold with one of their LT Hi-Ram intake plenum tops. Holley offers several versions of these cast aluminum units for your dual 4150 or 4500 carburetors. They're available with a black or natural finish. Complete your tunnel ram intake with Holley LT Modular Hi-Ram intake manifold tops; order the model recommended for your year/make and engine application. Features include: * Modular design with removable top * Overall height: 12.10 in. with carb-style top * Height at plenum flange: 9.44 in. * O-ring seals on plenum top * Easy assembly with top-mounted screws on plenum top (all except front two screws)
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$276.95
$249.25
On Sale
Holley Hi-Ram intake manifold plenum tops are constructed of cast aluminum and offered in different finishes to match the bases. They are available in dual 4150 or 4500 pattern, or in a full blank top so that you can design your system. Choose the ideal plenum for your Hi-Ram manifold.
Not Yet Reviewed
$318.95
$175.95
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$266.95
On Sale
Holley throttle body to carburetor manifold adapters allow you to mount an OEM or Holley TBI unit on most any manifold, saving you the expense of buying a different manifold. Made from high-quality cast aluminum, these adapters provide a smooth transition from the throttle body to the intake manifold for trouble-free operation.
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$199.95
$179.95
On Sale
Get connected with Holley EFI Coyote throttle body adapters! These adapter plates have a cast aluminum construction that's more durable for boosted applications, can be welded for modifications, and they are available in your choice of natural or black finishes. Choose the model for your application. Whether you're engine swapping your classic car or need to manage 4000 horsepower in your twin-turbocharged drag radial race car, Holley EFI has the solutions you need to get your project up and running better than ever!
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$179.95
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$190.95
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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$199.95
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$228.95
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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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$109.95
On Sale
Holley cooling manifolds are designed for use with their mid-mount accessary drive systems. These aluminum manifolds are offered with a black, polished, raw, or satin finish. Keeping your vehicle cool is the key to maximum performance. Holley cooling manifolds will help dissipate some of that extra heat.
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$376.25
$206.95
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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$199.95
$179.95
On Sale
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.
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$249.95
$224.95
On Sale
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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$269.95
$242.95
Holley offers EFI fuel rail kits designed for use with Coyote Hi-Ram and Ultra Lo-Ram intake manifold bases, 300-920 and 300-921. A fuel rail is the common reservoir of high-pressure fuel that feeds into all the injectors on one side of a fuel-injected engine. They help to achieve high levels of fuel efficiency and environmental performance. These Holley fuel rails are manufactured from aluminum with a black anodized finish and -8 AN inlet size.
Not Yet Reviewed
$179.95
On Sale
Holley carburetor adapters make intake, carburetor, or throttle body changes a snap. They're available in a variety of bolt patterns to accommodate a large number of combinations.
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$190.95
$171.85
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$194.95
On Sale
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
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$272.95
$134.95
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$245.65
On Sale
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
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$188.95
$170.05
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$177.95
On Sale
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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$212.95
$170.95
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$212.95
On Sale
Holley throttle body intake elbows feature a dual throttle body bolt pattern, and fit any intake manifold with 4150 or Dominator mounting flange. They also have a 105mm throttle body opening and a 100 degree mounting angle with slotted mounting holes. Constructed from cast aluminum, they include a MAP sensor port cover, gaskets, and hardware.
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$279.95
$197.05
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$251.95
On Sale
Holley RetroFilter air cleaners cleverly hide an LS drive-by-wire throttle body inside to maintain a low height and classic looks. Utilizing a hidden opening in the base to hide unsightly wiring from the throttle body, this trick air cleaner allows you to experience all the benefits of modern technology and keep the vintage look you want. Pair with any Holley intake manifold with a 4150/4610 square bore flange for maximum aesthetics and performance. The opening is 92mm, but any 4-bolt pattern LS throttle body will physically fit. Holley recommends the LS2/LS3/LS7 style but the L33, L76, and L92 should also fit. RetroFilter DBW air cleaners are available in a 16 in. round or 14 in. dual snorkel style with either a black or chrome finish. Choose the one you prefer under the hood of your vehicle. Features: * Allows full EFI functionality stealthily hidden within a traditional looking air cleaner package * Each kit includes a 3 in. tall, pre-oiled, washable, and reusable premium cotton gauze filter element * Adapts to LS-style drive-by-wire throttle bodies found on the LS2, LS3, LS7, etc. * Can be installed on any vehicle running a top mounted 4150/4-barrel EFI capable intake manifold with LS3 DBW wiring components * Stamped aluminum lid and base for optimal durability and lightweight Note: Requires adapter to connect to 4150/4160 square bore flange-style manifold. Holley EFI part no. 17-93 is recommended.
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$263.95
$190.75
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$237.55
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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$117.95
$106.15
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
$113.95
2009+ Gen III Hemi engines rolled off the showroom floor with Variable Valve Timing (VVT). Both the Terminator X and Terminator X Max ECUs will allow you to control and tune the VVT with the use of Holley EFI Gen III Hemi VVT harnesses. These plug-and-play harnesses (to the factory sub-harness) provide control of VVT solenoid under the intake manifold.
Not Yet Reviewed
$125.95
On Sale
Holley EFI Gen III Hemi VVT and SRV harnesses offer control. 2009+ Gen III Hemi engines rolled off the showroom floor with Variable Valve Timing (VVT). Now, both Holley Terminator X and Terminator X Max ECUs will allow you to control and tune the VVT with the use of the plug-and-play VVT harness. But the fun does not stop there! If you are using a stock intake manifold that came from the factory with the Short Runner Valve (SRV), Holley also has a plug-and-play sub harness that will allow you to utilize the SRV actuator and capitalize on its low rpm torque benefits. Features: * Plug-and-play with the factory Gen III HEMI VVT sub-harness, and any Holley EFI HEMI main harness connecting to the power tap and input/output connectors * Provides control of VVT solenoid under the intake manifold * SRV (Short runner valve) connector pre-wired into the sub harness allowing you to simply plug into the factory SRV actuator in the intake manifold
Not Yet Reviewed
$163.95
$147.55
Holley Lo-Ram billet burst panel ducts complement their LS Ultra Lo-Ram EFI intake manifold kits. They designed the kits for boosted engine applications requiring protection for the engine from an intake plenum backfires. Order Holley LS Ultra Lo-Ram billet burst panel ducts in your choice of quality finish to fit your standard "large" burst panels (6 1/8 in. x 3 1/8 in.). More product features include: * Designed to direct the products of an intake manifold plenum backfire and burst to the outside of the vehicle bodywork * Can be used on any intake manifold plenum fitted with a standard "large" burst panel flange * High-quality mounting fasteners
Not Yet Reviewed
$243.95
On Sale
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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$249.95
$149.95
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$224.95
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