AMS Performance Subaru WRX - STI EJ Intake Manifold - Reverse Rotation, Uncoated RealTruck Backrack The complexity and cost that

The complexity and cost that went into developing these parts alone was a significant investment

MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93215 helps keep the check engine light off

While the air compressor and its associated equipment is safely stored behind the seat

Improves steering feel and vehicle control

allowing you to upgrade your truck's lighting without hassle

AMS Performance Subaru WRX - STI EJ Intake Manifold - Reverse Rotation, Uncoated RealTruck Backrack The complexity and cost thatEJ25 Intake Manifold AMS EJ25 Subaru Intake Manifold REVERSE ROTATION Uncoated. 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!