FAST 146102B LSXR 102mm LS3 Intake Manifold

FAST 146102B LSXR 102mm LS3 Intake ManifoldFAST engineers teamed up with airflow specialists at RHS to develop a polymer intake manifold for rectangular port GM L92 LS3 engines. Testing on a stock LS3 engine with a Big Mouth 102mm Throttle Body produced gains of 14+ horsepower and 11+ ft lbs of torque at the flywheel over the stock intake. The LSXR 102mm Intake Manifold features a three piece modular design that allows easy disassembly and porting. Extensive testing led to a runner design that