FAST LSXR Intake Manifold

FAST LSXR Intake Manifold

Product Code: 700-763

Price: $1050.00

In Stock: 2 
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FAST™ LSXR™ 102mm Intake Manifold for LS7
Revolutionary new intake manifold maximizes the performance of GM LS7 engines


The LS7 may be a powerful engine platform, but when has that ever been enough for the performance enthusiast? Now GM LS manifold technology has been completely reinvented. The engineers at FAST™ teamed up with the airflow specialists at RHS® to develop the all-new LSXR™ 102mm Intake Manifold for raised rectangular port GM LS7 engines. Recent testing by Katech Performance produced gains of 16 horsepower and 18 ft/lbs of torque at the flywheel (versus the stock intake) on a LS7 with a mild performance cam, Big Mouth 102mm Throttle Body™ and a Killer Bee intake. Testing at the School of Automotive Machinists on a 500c.i. LSX engine with LS7 heads netted even more impressive gains of 26+ rear wheel horsepower

Following the path chartered by the original FAST™ LSX™ Gen III Manifold, the new LSXR 102mm Intake Manifold features a removable runner, modular design that allows for easy disassembly and porting, including the ability to remove individual runners for modification. Extensive testing also led to a runner design that is longer yet much less restrictive, yielding both torque and power gains, and a larger 102mm air inlet to increase flow over the stock intake. While the LSXR™ 102mm air inlet is perfectly suited to the FAST™ Big Mouth 102mm Throttle Body™, it can also be used with stock or aftermarket 90mm or 92mm throttle bodies.

The LSXR™ is constructed from a proprietary advanced polymer material that has been burst tested to withstand 67 psi of boost. In addition, this polymer material offers a host of benefits over aluminum aftermarket intakes, including lighter weight, strength and improved heat dissipating characteristics. Other features include integrated nitrous bungs and perfect bolt-on fitment that allows use of factory accessories without modification or clearance concerns.

Features & Benefits:
• Intake manifold designed for LS7 raised rectangle port heads
• Gains of 16 + hp on stock displacement engines & 26+ rwhp on larger cubic inch engines yet retains all factory fitments
• 3-piece modular design with removable runners for easy disassembly & porting
• The 102mm throttle body intake diameter works with 90, 92 or 102mm bodies for high flow with minimum restriction
• Advanced polymer material is strong, lightweight, easy to modify and keeps intake charge cool for power enhancement


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  • Corvette
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