Perrin [02-14 WRX, 04-21 STI, 05-09 LGT] Air Oil Separator Neon Yellow w/ FMIC Performance Aero Parts heat resistance

heat resistance

delivering cutting-edge style and superior visibility

The PERRIN inlet hose is perfectly smooth on the inside and has a larger radius bend toward the throttle body

Built with rubber-insulated front mounts and retaining the OE rear mounts

Rebuildable Design: Designed for long-term ownership

Perrin [02-14 WRX, 04-21 STI, 05-09 LGT] Air Oil Separator Neon Yellow w/ FMIC Performance Aero Parts heat resistanceThe 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