FAST 146103B LSXR 102mm High HP Intake Manifold LS3

Compatible with LS3 style Rectangular Port Cylinder Heads.;

FAST® engineers teamed up with airflow specialists at RHS® to develop polymer intake manifolds for GM LS based engines. Testing on a near stock LS7 engine with a Big Mouth 102mm Throttle Body™ produced gains of 16+ horsepower, and 26+ rear wheel horsepower on a 500c.i. engine. The LSXR™ 102mm Intake Manifold features a revolutionary modular design that allows fast and easy disassembly and features the ability to remove individual runners for porting.

Constructed from the same advanced polymer material as the original FAST® LSX™ 92mm Intake Manifold, the LSXR™ offers a host of benefits over aluminum aftermarket intakes, including lighter weight, increased strength and improved heat dissipating characteristics. While the LSXR™ features a 102mm air inlet that is perfectly suited to the FAST® Big Mouth 102mm Throttle Body™. Other features include integrated NOS bungs and perfect bolt-on fitment that allows the use of factory accessories without modification or clearance concerns.

Now available for LS3, L76, L92 and L99 rectangle port applications is a High Horsepower version of the LSXR™ Intake Manifold. With shorter and straighter runners than the original LSXR™, the High HP intake can make up to 20+ more horsepower than the original. Runner sets can also be purchased separately.

50 STATE LEGAL UNDER C.A.R.B. E.O. #D-279-9 for the following applications:
2008-2013 Corvette
2006-2013 Corvette Z06
2010-2014 Camaro w/ 6.2L
2014 Chevrolet SS
2009 Pontiac G8 GXP
2008-2009 Pontiac G8 GT
1995 & Older w/ Retro-Fit GM E-Rod 6.2L

This manifold will work with FAST® Big Mount Drive-By-Wire Throttle Bodies, Stock 4-bolt drive-by-wire throttle bodies, and stock 3-bolt throttle bodies with a FAST® adapter plate in applications where rectangle port heads have been retrofitted.

Accepts FAST® anodized billet fuel rails or stock fuel rails with a FAST® fuel rail adapter kit.;