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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 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
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 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
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 )
$1,245.95
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$1,325.95
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 )
$86.95
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$602.95
On Sale
FAST intake manifold spacers allow you to use standard-style intakes with Edelbrock Tall Deck race blocks. These spacers are CAD-designed by the engineers at FAST and CNC-machined to strict tolerances to fit your tall decks. FAST intake manifold spacers feature a lightweight, scalloped design that provides rigidity and function without adding significant weight. Installation hardware and a spacer-to-head gasket are included.
Not Yet Reviewed
$335.95
$268.76
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$342.95
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
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$501.95
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 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
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
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