Perrin [02-07 WRX/STI w/ TMIC] Red Air Oil Separator | PSP-ENG-605RD Lightweight Spring Rates: Front – 12kgf/mm

Spring Rates: Front – 12kgf/mm | Rear – 7

this cast aluminum intake manifold increases volumetric efficiency while delivering a more even air and fuel distribution across all cylinders—exactly what high-output RB builds demand

Brand: GEN Performance

The PLM EPA-Compliant High-Flow Downpipes for the BMW S58 platform are engineered to deliver substantial improvements in exhaust flow

OEM-plus aesthetic

Perrin [02-07 WRX/STI w/ TMIC] Red Air Oil Separator | PSP-ENG-605RD Lightweight Spring Rates: Front – 12kgf/mmThe AOS increases intercooler efficiency by reducing the amount of oil deposited into your intercooler and intake system! As blow by oil builds up inside your intercooler, the less efficient it becomes due to less heat being transferred away from your engine. This leads to power loss and detonation, which can be damaging to your engine. Reduce carbon build up in the combustion chamber, intake valves, and in your intake tract. Crank case blow by is