Availability
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.
( 26 )
$450.95
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$1,496.95
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.
( 5 )
$1,222.95
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.
( 3 )
$619.95
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$1,060.95
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.
( 10 )
$1,269.95
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$1,467.95
FAST LSX High-Flow Billet Fuel Rails
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.
( 31 )
$248.95
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$297.95
FAST EZ-EFI Throttle Cable Mount Kits
These FAST EZ-EFI throttle cable mount kits are made for the specific needs of the FAST 4150 throttle body found in the FAST EZ-EFI systems. They are designed to work with and allow adjustability for automatic TV cables, and are specifically marked for the unique TV cable setup on GM 700R4 transmissions. The kits are built to be more stable and accurate than others on the market. They feature a proper tension double-spring to ensure accurate throttle closing and maximize the performance of the FAST EZ-EFI. The adjustability of the linkage is engineered to ensure proper wide-open throttle actuation. The FAST EZ-EFI throttle cable mount kits include all necessary mounting hardware to install and adjust, as well as a comprehensive selection of cable mounting brackets to cover all major cables, applications, and brands.
( 98 )
$82.95
FAST EZ-EFI 2.0 Self-Tuning Fuel Injection Systems
Tuning your set-up has become even "EZer" thanks to FAST EZ-EFI 2.0 kits. These revolutionary self-tuners don't require a laptop or tuning experience. Simply hook them up, answer the basic Wizard setup questions, and the systems truly tune themselves--"EZ", right? Some kits include the innovative FAST 2.0 throttle body but FAST offers several choices, each a little different component wise--base kits, master kits with fuel systems, multi-port, and retro-fit kits--to fit your application with the simplest self-tuning engine control available. But no matter which one of the kits you choose you'll get a full-color, hand-held touchscreen, a wide-band oxygen sensor, and a fully mesh wrapped wiring harness.
( 8 )
$2,939.95
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$4,169.95
FAST Precision-Flow Fuel Injectors
FAST Precision-Flow injectors are your best choice for fueling your hot rod, race car, or anything in between. These injectors are precision flowed and sorted to ensure that you get consistent fuel delivery at all pulse widths and duty cycles. FAST Precision-Flow injectors are dynamically, multi point tested, and sorted in sealed sets of 8 with a tolerance of +/- 2 percent at all points. This flowing and sorting process gives you consistent cylinder to cylinder fuel delivery for even Air/Fuel ratios across all cylinders and accurate fueling. Your engine gets the amount of fuel it needs to each cylinder for smooth, reliable performance. Full injector characterization data is available for each part number. Features: * Dynamically flowed at multiple pulse widths, then sorted and sealed in sets with +/- 2 percent maximum variance * Include large LS style lower O-ring but can be used in applications with a 0.550 in. injector bore by swapping lower O-ring * Available in flow rates from 30 lbs./hr. to 245 lbs./hr. (rated at 58 psi) * Available as singles or sets of 8 * High impedance * Compatible with ethanol and oxygenated fuels * Part number and flow rate etched into each injector for easy identification * Complete plug-and-play characterization data available for most OEM and aftermarket engine control systems
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$54.95
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$531.95
FAST LSXHR Intake Manifolds
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
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$1,222.95
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$1,325.95
FAST Big Mouth LT Throttle Bodies
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.
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$223.95
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$618.95
FAST Fuel Rail Lines
These FAST fuel rail lines are designed to connect your FAST fuel rails to your fuel source or an additional fuel rail. They are manufactured using stainless steel braided hose and black anodized -6 AN aluminum female fittings. The lines have the fittings pre-crimped, making them easy to install with no fuel rail modifications necessary.
( 8 )
$58.95
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$77.95
FAST EZ-EFI Retro-Fit Color Touchscreens
Drivers using the first-generation EZ-EFI fuel system from FAST can now upgrade to better technology. These retro-fit color touchscreens first serve as your Setup Wizard, then become an electronic gauge screen. The hand-held device has various advanced features, such as a screen hide/sleep function, an intuitive user interface, expanded diagnostics, and more detailed data screens. New adjustments like cold-start and cranking fuel offsets have been added, while many elements on the dashes are now configurable. There is also no longer a need for the cigarette lighter plug—and only one cable is required for installation. Improve your driving and data performance with FAST EZ-EFI retro-fit color touchscreens.
( 8 )
$415.95
FAST EZ-EFI 2.0 Replacement Computer Programmers
FAST EZ-EFI 2.0 replacement computer programmers maintain the ease-of-use on your self-tuning engine control system. These are the same updated handheld color touchscreens that came with your system originally. Your reason for needing another one isn't important—the fact that FAST can accommodate your needs is. Choose the replacements made for your system: EZ-EFI 2.0 computer programmers.
( 4 )
$526.95
FAST LSXR OEM Fuel Rail Kits
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.
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$369.95
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$376.95
FAST LSXR Upper Intake Shells
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
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$690.95
FAST LSXR LS3/LS7 Fuel Injector Spacers
FAST LSXR LS3/LS7 fuel injector spacers are designed to extend your short OEM fuel injectors to the same length as the longer-style injectors. These kits include spacers and O-rings.
( 18 )
$55.95
FAST Fuel Pressure Regulators
FAST adjustable fuel pressure regulators are made of precision CNC-machined billet aluminum that's designed to exacting specifications. The units feature twin -6 feed side ports and one -6 return port on the bottom for maximum efficiency. These FAST fully adjustable regulators are vacuum referenced and utilize a hex adjustment stud with jam nut. And, with their black anodized finish, they look great, too! For quality performance and long-lasting looks under the hood, get FAST adjustable fuel pressure regulators!
( 4 )
$163.95
FAST Fuel Injector O-Rings
FAST fuel injector O-rings help you maintain leak-free performance. These small but vital components will ensure your fuel injectors do their job efficiently by delivering a tight seal at the intake manifold. Damaged rings could be hazardous; replace yours with FAST fuel injector O-rings.
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$7.95
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$26.95
FAST Fuel Rails
FAST fuel rails deliver the fuel! Their rails are machined from 6005A-T5 aluminum and feature a large, 11/16 in. inside diameter for consistent pressure at each fuel injector. Offered in several lengths, FAST fuel rails are black anodized to help to promote heat dissipation and prevent oxidation.
( 7 )
$35.95
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$245.95
FAST Intake Manifold Hardware Kits
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
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$173.95
FAST LSX LS1 EFI Fuel Line Conversion Kits
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
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$208.95
FAST EX-EFI Electric Fuel Pumps
FAST EX-EFI electric fuel pumps are designed to keep your FAST EX-EFI system supplied with the right amount of fuel. They're manufactured from premium materials, feature easy plug-in connections, and can be installed inline (depending on model) anywhere you need them. Order your pump with or without mounting brackets.
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$185.95
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$239.95
FAST Fuel Rail Mounting Brackets
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 )
$8.95
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$58.95
FAST Idle Air Control Motors
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 )
$77.95
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$156.95
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