Fast LSXR 102mm Standard Intake Manifold Chevy LS3/L99-L92-L76 146102B

FAST 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. This LSXR 102mm Intake Manifold features a three-piece modular design that allows easy disassembly and porting. Extensive testing led to a runner design that is longer and less restrictive and gives the user the ability to remove individual runners from the manifold for modification.

Standard runners work with stock or mild vehicles

High HP and Race runners are shorter and straighter than conventional runners to improve high RPM hp

High HP option makes 20+ HP over original LSXR manifold, Race setup makes 35+ HP

Interchangeable runners allow manifold to be configured as original, High HP, or Race