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2003 Air & Fuel Delivery

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Results 1 - 24 of 986

On Sale

Summit Racing™ Premium EFI Intake Manifolds

Stock intake manifolds in electronic fuel injection vehicles often fall short of lasting for the life of the vehicle. Being molded from polymers they tend to warp or crack and start leaking vacuum or coolant over the years. Summit Racing™ Premium EFI intakes are just what you need when it's time to replace your manifold as our design improvements address the failures that occur with existing manifolds for this application on the market today. These units are made to fit your specific vehicle and come complete with the necessary hardware for an easy OE type installation. Make this the last manifold you ever buy for your car or truck. Check out these features and benefits below: • Made in USA by OE Tier 1 Supplier • Aluminum crossover design improvement to mount direct to the cylinder head eliminating coolant exposure and eventual failure at the plastic interface of existing manifolds on the market. • High grade coolant resistant material used in coolant fitting and block out locations to coolant system. All coolant exposure areas are addressed with appropriate material. • Heat staked inserts for coil mounting. • Includes alternator brackets, throttle body adapter (application specific), thermostat, gaskets or O-ring seals, and mounting hardware.

4.55 out of 5 stars ( 55 )

$257.99


$109.99

$242.99

Magnuson Supercharger Kits

Magnuson supercharger kits make power you can live with! Magnuson's powertrain integration technology offers you the ability to have big horsepower and drivability in the same supercharger. This technology recalibrates the engine and transmission control programs to work with the altered induction path and boost pressure of the supercharger. And that produces a seamless and consistent delivery of power over the entire rpm range--not just the high end! For you, that means Magnuson superchargers will boost your power output, and yet run like their factory installed units. Whether you're driving a Corvette or a Cadillac, a Silverado or a Hummer, or a Camaro or a Mustang, Magnuson supercharger kits deliver maximum performance!

4.08 out of 5 stars ( 12 )

$7,395.00

FAST LSXR Intake Manifolds

The engineers at FAST teamed up with the airflow specialists at RHS to develop a 3-piece, polymer intake manifold. They are constructed from a proprietary advanced polymer material that offers a host of benefits over aluminum aftermarket intakes, including lighter weight and improved strength and heat dissipating characteristics. While they feature a 102mm air inlet that is perfectly suited to the FAST Big Mouth 102mm throttle body, they can also be used with stock or aftermarket 90mm or 92mm throttle bodies. Other features include integrated nitrous bungs and perfect bolt-on fitment that allows for the use of factory accessories without modifications or clearance concerns. FAST LSXR intake manifolds' 3-piece modular design allows for easy disassembly and porting. This new design gives you the ability to remove individual runners from the manifold for modification.

4.04 out of 5 stars ( 26 )

$450.95

$1,496.95

Summit Racing™ Universal LS Fuel Filter Regulators

Summit Racing™ LS fuel filters with built-in regulator make it easy when getting more fuel to your engine. They are Corvette- style, 58 psi-rated fuel filter/regulators with a 5 nominal micron rating. The bypass design allows you to run one inlet with one outlet to the engine and a return outlet back to the tank. Summit Racing™ universal LS fuel filter regulators are ideal when performing a LS engine swap or any other fuel injection swap.

3.67 out of 5 stars ( 46 )

$34.99

$64.99

Edelbrock Performer RPM LS1 Intake Manifold Kits

Go retro with Edelbrock Performer RPM LS1 intake manifold kits. These kits give you the opportunity to use a carburetor on your originally computer-controlled engines. Performer RPM LS1 kits include a wiring harness and an MSD ignition controller (compatible with 24x and 58x) which works with OE sensors to fire the coil-on-plug ignition system and offers a choice of six timing curves. A special throttle and transmission bracket that works with 700R-4, 200R-4 and Turbo 350 transmissions is included. Make your LS1 engine an easy retro-fit into any muscle car, street rod or marine application with American-made Edelbrock Performer RPM LS1 intake manifold kits.

4.1 out of 5 stars ( 10 )

$1,027.95

On Sale

Aeromotive Stealth 340 In-Tank Electric Fuel Pumps

Stealth 340 pumps are high-output, in-tank, electric fuel pumps for fuel injected and carbureted applications. At a volume rate of 340 liters per hour. These universal pumps bolt into many existing hanger assemblies, and are a direct fit upgrade for many OE applications. These pump will support up to: * 1000 HP (carbureted/naturally aspirated) * 850HP (carbureted/forced induction) * 850HP (EFI/naturally aspirated) * 700HP (EFI/forced induction) * 700HP on E85 (carbureted/naturally aspirated) * 595HP on E85 (carbureted/forced induction) * 595HP on E85 (EFI/naturally aspirated) * 490HP on E85 (EFI/forced induction)

4.35 out of 5 stars ( 17 )

$157.00


$141.30

Summit Racing™ Billet Throttle Bodies

Summit Racing™ billet throttle bodies are designed with larger openings (92mm or 102mm) to improve throttle response and provide maximum airflow. They're precision CNC-machined from billet aluminum and available in your choice of natural or black anodized finishes. Feed your LS engine the air it needs—and unleash its hidden horsepower! Order the Summit Racing™ replacement throttle body recommended for your vehicle.

4.88 out of 5 stars ( 26 )

$169.99

$180.99

Summit Racing™ Pro LS Steam Line Kits

When upgrading your LS-powered vehicle, don't forget to replace the factory steam tubes. Our Summit Racing™ Pro LS steam line plumbing kits eradicate trapped air and steam pockets from your engine to prevent hot spotting and overheating as well as provide more flexibility when using aftermarket intakes. Kits vent all 4-corners (except SUM-220952 and SUM-220952B kits) and contain black anodized billet aluminum fittings, steam port adapter, O-rings, stainless steel bolts, -3AN or -4AN hose and hose ends, (stainless steel hard lines and 5-port distribution block on SUM-220959 kit only) to make installation easy and more attractive than OEM lines, offering a cleaner look and better waterflow.

2.69 out of 5 stars ( 16 )

$74.99

$169.99

FASS Fuel Systems Titanium Signature Series Fuel/Air Separation Systems

FASS Fuel Systems Titanium Signature Series fuel/air separation systems are a beneficial upgrade for your diesel engine. Titanium systems feature compact designs, powerful motors for improved fuel flow, and advanced filtration that's far superior to your factory fuel filter. Their diesel fuel lift pumps are engineered to be top performing, reliable, long-lasting units—and are backed by a limited lifetime warranty on all light-duty diesel applications. The Signature Series also features FASS revolutionary Whisper Technology that effectively and drastically reduces the sound levels of these diesel systems to a "whisper," while at the same time increasing fuel flow rates. Whether stock or highly modified, FASS Titanium Signature Series diesel fuel systems are available to handle your engine's horsepower. Features and benefits: * Systems available with flow rates up to 290 gph * Advanced filtration removes water, air, vapor, and debris with a filtration rating of 2 micron * Smoother engine idle * Protects and extends the life of your injectors * Whisper Technology (FWT)—reduces noise levels without reducing flow rates * Performance Radius Cuts (PRC)—advanced machining technique creates smooth cuts within aluminum housing * Improved fuel volume delivery * Mass Flow Return (MFR)—technology used to continually "polish" your fuel by keeping positive pressure on fuel being delivered to your engine, guaranteeing the cleanest fuel possible. Also prevents cavitation, along with galling and scoring. * Improved cold weather starts * Decreases carbon monoxide and carbon dioxide emissions * Easier bolt-on bracket mounts do not require any drilling or welding to mount new pump * 1/2 in. fuel lines and ports * Fuel mileage improvement * 30,000 mile filter life expectancy

4.64 out of 5 stars ( 58 )

$669.00

$849.00

FAST Throttle Bodies

Are you looking for a high-flow billet throttle body? The FAST engineering team used the latest computer modeling software and real-world testing to produce these throttle bodies, which yield the maximum flow per square inch of cross-sectional area. All FAST throttle bodies are machined from super-strong 6061-T6 billet aluminum in precision CNC machining centers for consistent quality and light weight.

5.0 out of 5 stars ( 3 )

$739.95

FAST LSX Intake Manifolds

These FAST LSX intake manifolds are the only 3-piece Gen III composite manifolds proven to deliver increased performance without compromising bottom-end drivability or high-rpm horsepower. They easily bolt onto GM Gen III (LS1, LS2, and LS6) engines and are designed to work with the 92mm FAST Big Mouth throttle body. The new stylish black intake manifolds deliver terrific performance right out of the box and can be ported by the customer for even more flow. As requested by previous LSX customers, the FAST LSX intake manifolds feature the added benefits of corrosion-free stainless steel assembly bolts, an improved throttle body sealing flange, and O-ring gasket and threaded insert throttle body mounts that provide increased durability.

4.2 out of 5 stars ( 5 )

$1,222.95

Painless Performance Fuel Injection Harnesses

For maximum power with exceptional drivability, transplant the power of fuel injection into your vehicle with Painless Performance fuel injection harnesses. All kits include straightforward instructions and TXL high-temperature, color-coded, and labeled wire for ease of installation. All fuel injection harnesses are 100 percent quality-tested on OmniScanners to ensure the viability of the circuits. Harnesses for both GM and Ford applications are available and they use genuine original equipment connectors for trouble-free installation and operation.

4.48 out of 5 stars ( 94 )

$137.99

$1,299.99

On Sale

Holley Sniper Throttle Bodies

With Holley Sniper throttle bodies, Holley engineers went back to the drawing board to build the ultimate air valve for your engine! They feature enlarged bore sizes, allowing for increased airflow to support your higher horsepower needs. A progressive throttle pulley enhances low-speed drivability, and a double return spring provides solid and secure throttle control feel. These units are maximized for your application, with a 4-bolt style mounting pattern; most models include bolts and gaskets. Order the throttle body designed for fitment with your year/make and engine family.

3.92 out of 5 stars ( 39 )

$349.95


$192.95

$320.95

FAST LSXRT Intake Manifolds

FAST LSXRT intake manifolds are designed specifically for GM truck engines (4.8L, 5.3L, and 6.0L) and LS1, LS2, and LS6 race applications where hood clearance is not a concern. FAST LSXRT 102mm intake manifolds follow the path chartered by the original FAST LSX Gen III intakes by featuring a modular design that allows for easy porting and disassembly and a runner design that yields an incredible 25 peak horsepower gain over the stock intake (on a stock 6.0L engine with a Big Mouth 102mm throttle body). Similar to the LSXR 102mm intake manifold for cars, the LSXRT features the ability to remove individual runners for modification. LSXRT's are constructed from a proprietary precision injection molded polymer which offers many benefits, including lighter weight, greater strength and lower heat soak propensity. While they feature a 102mm air inlet that was designed for the FAST Big Mouth 102mm throttle body, they can also be used with stock 90mm or aftermarket 92mm throttle bodies (78mm three-bolt throttle bodies require an adapter). Other features include integrated nitrous bungs and precise bolt-on fit that permits the use of factory accessories and OEM fuel/emission connections without adjustments or clearance issues. Some GM truck models may require the FAST 92mm or 102mm throttle body.

4.0 out of 5 stars ( 10 )

$1,269.95

$1,467.95

DeatschWerks Fuel Injectors

DeatschWerks fuels your passion for performance with fuel injectors specifically designed and engineered for your Sport Compact, Modern Muscle, and European vehicles. DeatschWerks fuel injectors are manufactured to fit your OE harness, fuel rail, and manifold. Because they are application-specific, you'll spend less time installing and tuning, so you can spend more time enjoying the increased performance of your ride! They provide an excellent spray pattern and atomization for optimized idle and tuning. Each set is flow-matched both statically and dynamically, and flow-balanced to within one to two percent. A flow report is included with each set of DeatschWerks fuel injectors.

4.69 out of 5 stars ( 67 )

$329.00

$1,689.00

FiTech Throttle Bodies

FiTech throttle bodies provide high-flow for your LS engine. They are built with cast aluminum construction and include the IAC motor. They are offered in two low-profiles with diameters of 92mm and 102mm available.

4.26 out of 5 stars ( 50 )

$192.00

Holley EFI LS Hi-Ram Intake Manifolds

Holley EFI LS Hi-Ram intake manifolds are designed for your high performance race engine. Big cube and high-rev applications without height limitations are the intent for these manifolds. The modular design of these Holley Hi-Ram intake manifolds offers a runner length and as-cast tapered cross-section design that works for a wide range of engine configurations. The included fuel rails are machined for -8 AN O-ring fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system. Build maximum performance with EFI LS Hi-Ram intake manifolds from Holley.

3.79 out of 5 stars ( 39 )

$1,149.95

$1,299.95

Walbro Electric In-Tank Fuel Pumps

Walbro electric in-tank fuel pumps are available in a variety of flow ratings, including pumps that flow significantly more fuel at higher pressure. The outside dimensions, however, of many pumps are compact enough to fit existing hanger assemblies, without modification. All pumping components have been validated to OEM specifications for use in E85/flex fuel applications. Most Walbro in-tank fuel pumps utilize a proven gerotor design. Some high-performance models, including those designed for engines with more than 750 hp, feature a dual-channel turbine design for maximum efficiency in high-pressure and high-temperature applications. The blades feed two high-pressure pumping channels, as opposed to a conventional single-stage pump that uses an impeller with a single row of blades at its outer edge. This innovative design results in improved hot fuel flow, as well as minimal noise and current use, resulting in efficiency that's higher than conventional pumps. Some pumps require modifications to system wiring, fuel lines, and the fuel module, and should be professionally installed. Installation kits including a fuel strainer, fuel hose, harness pigtail, clamps, and wire connectors are sold separately.

4.44 out of 5 stars ( 371 )

$111.99

$271.99

Injector Dynamics ID1050x Fuel Injectors

Injector Dynamics ID1050x fuel injectors are a built-to-spec motorsport injector, offering optimization of critical operating parameters important to you, the motorsport tuner. Built on the evolution of the ID1000 and X Series, these injectors are a drastic improvement over previous series from Injector Dynamics. Order the set recommended for your vehicle. Features include: * Requires only 8 V for consistent operation at 8 bar * Corrosion resistance makes them compatible with all automotive fuels * Compact bodies allow fitment in over 200 applications * Improved internal flow path—without sacrificing low flow performance * Stronger magnetic circuit offers stable operation up to 10 bar * Replaceable inlet filter extends service life

5.0 out of 5 stars ( 8 )

$546.00

$1,092.00

On Sale

Holley LS Modular Lo-Ram EFI Intake Systems

Holley LS Modular Lo-Ram EFI intake systems have a top-feed plenum entry configuration, designed to allow the currently available Hi-Ram 105mm plenum tops to be fitted to a low-profile base intake manifold. The short runner, low-profile base intake manifold intended for forced induction applications and was conceived to package with an air-to-water plenum-mounted intercooler—with a shorter overall height than is possible with other existing intake manifolds. Using a modular design, the top-feed plenum configuration with 105mm top keeps the overall height at just 9.07 in.! Additional features and specs include: * Cast aluminum construction * Modular design allows the use of the included top-feed plenum entry * Designed for GM LS Gen III and IV engines equipped with GM LS1/LS2/LS6 (cathedral port) cylinder heads * Will also work with OE or aftermarket cylinder heads * Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7,000 to 8,000 rpm, depending on application * Low height to aid the packaging of a plenum-mounted air-to-water intercooler in a top-feed configuration (or to fit under a stock or mildly modified hood in the front-feed configuration) * High-volume fuel rails and mounting hardware included with 3/4 in.-16 O-ring ports (8 AN) * Fuel rail kits come with two sets of brackets—a set for long (usually standard length) fuel injectors, and a set for short (such as Pico or LS7) fuel injectors

5.0 out of 5 stars ( 1 )

$1,049.95

$1,099.95

BTR Equalizer 1 Intake Manifolds

BTR Equalizer 1 intake manifolds are low-profile, high performance intakes. Cast from 319 aluminum, these Brian Tooley Racing manifolds are designed for combinations that are looking to make peak power between 6,000 and 8,000 rpm. Boosted engine combinations are actually more reliable making peak power in this higher rpm range, compared to making peak power around 6,500 rpm like most stock style intakes, provided the valve train is engineered properly. These units are available for a variety of applications from 1997 and up. Features and specifications for Equalizer 1 manifolds: * O-ringed port openings and lid surface * Easy insert steep chamfer injector bores for trouble-free injector O-ring insertion * Underslung plenum design for maximum hood clearance * 102mm profiled throttle bore * One map sensor location in rear, with two additional user optional locations * Additional user-defined LS3 and LS1, LS2, and LS6 map sensor bores * ISO9001:2015 certified machining * 2-piece design for easy porting access * Lightweight CAD-generated design * Profiled port openings for optimum out-of-the-box performance * All threads are roll form aircraft standard DSDV * Clears F-body cowls * Clears C5 cowls with minimal massaging to intake

4.0 out of 5 stars ( 5 )

$749.99

$799.99

Lokar Hi-Tech Throttle Cables

Lokar Hi-Tech throttle cables are available in stainless steel braided, black stainless steel braided, or black polyethylene housings. They're designed with a specially extruded liner for the extended life of the cable—not to be confused with ordinary braided brake hose. These cables are equipped with aluminum fittings and aluminum ferrules to eliminate fraying; and feature a "U-Cut-to-Fit" outer housing and stainless inner wire. The clevises are designed without cotter pins or set screws and adapt to factory and aftermarket pedals for an easy installation. Each cable comes with installation instructions. Order the universal-fit or application-specific model recommended for your vehicle and engine family.

4.8 out of 5 stars ( 659 )

$71.95

$126.95

Holley EFI Systems Wiring Harnesses

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.

4.77 out of 5 stars ( 31 )

$632.95

$3,299.95

Summit Racing™ Max EFI LS Intake Manifolds

Our Summit Racing Max EFI LS intake manifolds feature a curved edge design with a large 9.7-liter plenum, for maximum flow and horsepower. They are available in both tall and low-profile, and satin or black anodized finishes. They include gaskets, mounting hardware, and a billet fuel rail kit.

2.89 out of 5 stars ( 9 )

$499.99

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