AMS Performance Subaru EJ WRX/STI Intake Manifold - Reverse Rotation, Coated

The AMS Performance Subaru EJ WRX/STI Intake Manifold. The manifold was designed with performance and big HP custom setups in mind. With the level of builds this manifold will be used in, there will be some customizing required. Get yours today!Stay Ahead Of Your Competition With The AMS Subaru WRX / STI Intake Manifold!The AMS Subaru Intake Manifold was designed to outperform the competition. We referenced many modern design examples and engineering studies to bring you the best intake manifold available for the Subaru EJ20 and EJ25 WRX & STI. After extensive testing we ended up with a manifold that makes more power than anything else currently available on the market! Benefits 4.5 Liter Plenum Volume 13” Equal Length Intake Runners (Measured from Face of Bellhorn to End of Runner) 2.5” (63.5mm) Intake Runner Diameter (ID of Bellhorn) Bellhorn OD 3.8” (96.7mm) Increased Port Size at Cylinder Heads Allow Matching to Larger Hand Ported or CNC Ported Cylinder Heads Available in Sta