PERRIN 13-25 Subaru BRZ / 13-25 Toyota GR86/86/FR-S Air Oil Separator - Black

The PERRIN Air Oil Separator prevents oil from entering the intake by capturing it from the crankcase vents. This reduces carbon build-up, improves intercooler efficiency, and lowers the risk of performance-degrading detonation. It is a maintenance-free closed-loop system, separating oil from air and draining it back to the engine, unlike catch cans which require draining. It features swirl pot technology and multi-layer baffles for efficient oil separation. The base plate is heated by coolant to reduce water condensation and sludge buildup. It includes CNC machined fittings and a Perrin Turbo Sump Pump Restrictor. The finish is powder-coated for protection and available in black. Designed to connect to crankcase vents separately for better venting and reduced oil ingestion during high G corners. No tuning is required for safe operation, but more power can be gained with proper ECU tuning.