FAST LS3 LSXRT Intake Manifold 102mm Flange Rectangle Port gives LS3 engines with rectangle-port cylinder heads even more plenum volume for all-out racing. Best suited for high-RPM race engines, this manifold creates proven gains of 30+ horsepower over the FAST® LS3 Street Manifold at high RPM. The raised 102mm throttle body location optimizes the larger, less restrictive High HP runner design, creating more power. It also clears truck drive accessories.
- FAST Intake Manifold
- LSXRT
- 102 mm Throttle Body Flange
- Rectangle Port
- Multi Port
- Plastic
- Black
- GM LS-Series
- Each