Availability
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.
( 26 )
$450.95
—
$1,496.95
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.
( 3 )
$739.95
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.
( 5 )
$1,222.95
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.
( 10 )
$1,269.95
—
$1,467.95
FAST LSX high-flow billet fuel rails feature a larger internal diameter that is designed to dampen the pulses and provide increased fuel volume, ensuring that your fuel injectors never run dry. They are manufactured from high-strength billet aluminum and are red anodized for maximum durability. These fuel rails include aluminum black anodized -8 AN fittings and "super-seal" O-rings that are component-matched to maximize fuel distribution. Upgrade your fuel system while adding some horsepower with these FAST LSX high-flow billet fuel rails.
( 29 )
$248.95
—
$297.95
FAST Big Mouth LT throttle bodies are cost-effective and stylish. If you don't want to go billet or can't afford it, these throttle bodies are the perfect choice for a variety of applications. An enlarged bore allows for increased airflow to support your higher horsepower, a progressive throttle pulley enhances drivability--especially at low throttle--and a double return spring provides a solid feel and increased safety. Here's an excellent alternative with all of the same features as their billet bodies--FAST Big Mouth LT throttle bodies with black wrinkle powdercoating.
( 9 )
$223.95
—
$346.95
FAST LSXR OEM fuel rail kits will help maintain optimum fuel flow to your EFI system. They are designed for use with the FAST 102mm intake manifolds and include all fittings and attachments for a direct bolt-on fit.
( 5 )
$369.95
The FAST LSXHR intake manifolds are available for LS3 rectangular port applications, as well as LS7 raised rectangular port applications. These units are the industry's first polymer tunnel ram-style intake manifolds—and are ideal for generating maximum power in boosted and naturally aspirated engines. Order the model designed for your application. Features include: * Standard "tall" stacks are interchangeable with separately purchased "medium" and "short" stacks to find the most powerful combination * Polymer construction is lightweight and high strength to eliminate power-robbing heat soak commonly found in aluminum intake manifolds * Average 30 hp gain between 5,000 and 7,500 rpm over competitors' high-ram intake manifolds * Rated for up to 45 psi of continuous pressure * Compound fuel injector angle aims spray pattern for ideal atomization, resulting in maximum power production and superior drivability * Reversible top allows for forward- or firewall-facing throttle body installations * Two nitrous nozzle bosses per runner for clean and easy direct port system installations * 103mm throttle body opening can be ported to 105mm
( 7 )
$1,222.95
FAST LSXR upper intake shells are constructed from advanced polymer material that offers a host of benefits over aluminum aftermarket intakes—including lighter weight, increased strength, and improved heat-dissipating characteristics. These replacement shells are compatible with FAST LSXR 102mm, LS, L99, L92, and L76 intake manifolds found on hundreds of vehicles. Order the model recommended for your application.
Not Yet Reviewed
$497.95
—
$690.95
FAST LSX intake manifold has revolutionized the performance of the GM LS-engine world by delivering increased power, versatility, and lightweight. The release of FAST LSX LS1 EFI fuel line conversion kits make it easy to take advantage of the power benefits of the LSX manifolds while using the FAST fuel rails to further enhance fuel delivery. Two kits are available, with or without the inline fuel pressure gauge, along with complete instructions to make installation a snap. FAST LSX LS1 EFI fuel line conversion kits include all of the fuel line parts, consisting of the rear crossover line, the main fuel supply line and the push connect fitting and plug to convert the factory 3/8 in. fuel line to -6AN lines. The FAST LSX LS1 EFI fuel line conversion Kits with the in-line fuel pressure gauge features a 1 1/2 in. diameter midnight silver encased, 0 to 100 psi liquid-filled gauge with a black face and easy-to-read white indicator needle. The FAST fuel rails must be purchased separately.
( 8 )
$173.95
—
$208.95
Control your idle speed with a little help from FAST idle air control motors. They allow the ECU system to determine the engine idle speed by controlling the airflow around the throttle body blades.
( 7 )
$156.95
Sturdy up your fuel rails! Whether you are building a custom fuel system or just updating your current system, FAST fuel rail mounting brackets allow you to bolt up your fuel rails quickly and easily. FAST is a leading developer of electronic fuel injection systems for the performance aftermarket.
( 4 )
$58.95
FAST intake manifold hardware kits come complete for specific FAST intake manifolds. The kits are made from stainless steel for longevity and have an Allen head design for optimal bolt head clearance for installation.
( 2 )
$61.95
—
$94.95
To properly fit your impressive FAST LSXRT intake manifold on your truck, you may need one of their fuel rail mounting adapter kits. Mating the intake to your stock round plastic or square metal-style fuel rails will flow easier with these helpful conversions. They contain the components and hardware needed to modify your stock rails for installation of the intake manifold. Individual parts, such as a mounting bracket, or the complete fuel rail kits are available. The best fitment produces better results; set up your LSXRT intake manifold with FAST fuel rail mounting kits.
( 1 )
$20.95
—
$86.95
FAST XFI fuel injector wiring harnesses allow you to incorporate non-OEM fuel injector plugs into your stock wiring harness. They're designed to be used with XFI ECU and XFI main harness's only. Available for different types and sizes of engines, they make the installation of a different style of injector no problem.
( 1 )
$150.95
—
$191.95
FAST velocity stacks come in sizes to garner the look and intake manifold performance you want. They are offered in sets of eight, and can be mixed and matched to improve performance or fine-tune your engine on a cylinder-by-cylinder basis. Order the velocity stacks recommended for your year/make and engine application.
Not Yet Reviewed
$108.95
—
$156.95
FAST LSXHR intake manifold intercoolers are a great solution to cool the air charge on a centrifugal-supercharged or turbocharged engine using one of the popular high-ram style intake manifolds, such as the FAST LSXHR composite manifold. The air-to-water intercooler conveniently fits between the upper and lower intake manifold, simplifying the installation, while saving space, time, and cost. Testing conducted on a 1,350 HP/20 psi turbocharged-LSX application showed a 198-degree F drop in temperature and less than 1 psi loss across the intercooler. FAST LSXHR intake manifold intercoolers feature: * Convenient placement minimizes underhood piping fabrication * Large -16AN water inlet/outlets * Welded billet construction * O-ring sealing on both air and water sections‚ necessary hardware included * Durable black powdercoated finish * Designed to work with the LSXHR 103mm intake manifold
Not Yet Reviewed
$2,094.95
FAST LSXR intake manifold runners will restore proper airflow to your intake for the performance you crave. These replacements are available in three sizes: Standard Street, High HP, or Race versions. The manifolds are designed to give you the ability to remove individual runners from the manifold for modification. FAST LSXR runners are yet another reason the LSXR intake is the only choice for your GM LS3/L99/L76 engines. Order the model recommended for your year/make and engine application.
( 2 )
$540.95
FAST LS cathedral port sheet metal intake manifolds provide race-developed technology for the street. They offer great aesthetics often associated with high-budget race engines. These fabricated manifolds are the perfect way to complete your engine—from each high-strength and durable TIG weld to the clean sheet metal bends and contoured runners. They don't just look good; they will help your engine achieve peak potential. Features of FAST LS cathedral port sheet metal intake manifolds include: * Black anodizing with a textured finish * Scalloped fuel rails further set this intake apart * Excellent performance in high-rpm naturally aspirated engines, as well as boosted applications * Big plenum, short runner design optimal performance * High-quality, durable construction ensures great fitment and reliability * 3mm thick aluminum construction resists flexing * Tested to over 25 psi of boost * Includes billet aluminum fuel rails, fittings, hardware, and gaskets
Not Yet Reviewed
$649.95
Clearance
FAST LSXR high-flow billet fuel rails feature a large internal diameter that dampens the pulses and provides increased fuel volume, ensuring your injectors never run dry. They also yield better fuel distribution and ultimately greater horsepower. FAST LSXR high-flow billet fuel rails deliver high-strength, lightweight, billet aluminum construction with an anodized red finish to offer not only performance, but also a show car-quality appearance.
Not Yet Reviewed
$70.99
$49.50
Whether you need a lower, upper, or inner shell, FAST intake manifold components are available to keep the performance flowing. These replacement shells are designed for and identical to the original pieces. They feature the same high-quality polymer material that will provide lighter weight, increased strength, and improved heat dissipating characteristics. FAST's intake manifold replacement shells are available for their LSX, LSXR, and LSXRT manifolds.
Not Yet Reviewed
$272.95
—
$523.95
FAST LSXRT intake manifold runners will restore proper airflow to your intake for the performance you crave. They're available in three sizes: Standard Street, High HP, and Race versions. These manifolds are designed to give you the ability to remove individual runners from the manifold for modification. The innovative runners are yet another reason FAST LSXRT intakes are the only choice for your GM engine. Order the model recommended for your application.
Not Yet Reviewed
$460.95
FAST XFI main wiring harnesses will allow you to connect the XFI ECU to the main engine wiring harness of your vehicle. They feature pre-terminated ends with special Weatherpack connectors for a perfect fit. Available for different engine configurations and styles, the FAST XFI main wiring harnesses will make the installation of your XFI ECU a lot easier.
( 2 )
$439.95
FAST XFI 2.0/XIM Super Cobra jet engine wiring harnesses are designed to integrate with the factory vehicle harness, switch panel, and other components of Cobra Jet engines. It's the same system used by top NHRA and NMCA Stock Eliminator and Super Stock racers such as Anthony Bongiovanni, Gary Richard, Jeff Roell, P.B. Candies, Randy Eakins, Roy Hill, Don Bowles, Susan McClenaghan and Chuck Watson. The wiring harness offers several mounting options for the ECU and ignition module. It also features heavy-duty heat and abrasion-resistant sheathing with heat-shrink-sealed ends on the underhood portion. There's double EMI shielding on critical harness leads, plus durable braided nylon sheathing on the under-dash portion of the harness. It's compatible with Ford 5.4 Modular and 5.0 Coyote engines, either naturally aspirated or supercharged. Each harness includes a detailed vehicle-specific installation guide for integrating the engine harness to the factory switch panel, factory Launch Control/2-Step function, and factory gauges. This allows for simple data-logging of factory-installed sensors like fuel pressure, oil pressure, and brake pressure into the XFI 2.0 ECU. No cutting or trimming is required if the FAST XFI 2.0/XIM Super Cobra jet engine harness is installed as directed. This saves 30-40 hours building labor and results in a neat, factory-appearing installation. Every harness is also 100 percent tested to ensure optimum performance.
Not Yet Reviewed
$1,528.95
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
