Intake Manifolds

FAST engineers teamed up with airflow specialists at RHS to develop a polymer intake manifold for rectangular port GM LS7 engines. Testing on a 500ci LSX engine with LS7 heads and a Big Mouth 102mm Throttle Body this manifold produced gains of 26 RWHP...

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...

GMM CNC Ported Intake Manifold (Stage 2 Package) Change Over  - Radius rod bellmouth- CNC PortingAll work completed via a CNC machine Change Over: You can bring your intake manifold in and direct swap for a complete one, or send us your...

GMM CNC Ported Intake Manifold (Stage 3 Package) Change Over - Radius rod bellmouth - CNC Porting - Post plenum volume adder All work completed via a CNC machine Change Over: You can bring your intake manifold in and direct swap for a complete one,...