Perrin - Subaru 04-14 STI - FMIC Air Oil Separator (Black) BF2025 (1) Application-Specific Oil Sandwich Plate

(1) Application-Specific Oil Sandwich Plate

Specifications:

These end tanks are precision cast and machined right here in Minnesota

The COBB Reverse Lockout Pull replaces the factory

with a larger diameter over the stock hose and the absence of a pleated section

Perrin - Subaru 04-14 STI - FMIC Air Oil Separator (Black) BF2025 (1) Application-Specific Oil Sandwich PlateOVERVIEW The PERRIN Air Oil Separator traps oil from the crankcase vents before it enters the intake, reduces carbon build up, increases intercooler efficiency, which reduces the chance of performance robbing detonation. NO TUNING REQUIRED Increase horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU