Perrin - Subaru 04-14 STI - FMIC Air Oil Separator (Black) BF2025 Specifications:

Specifications:

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

heat tolerance

The Redline Carbon Fiber intake is compatible with existing COBB Off The Shelf Maps that support the standard SF Intake

Perrin - Subaru 04-14 STI - FMIC Air Oil Separator (Black) BF2025 Specifications:OVERVIEW 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