Cobb Air Oil Separator Subaru WRX 2002-2007 / STI 2004-2007 | 811615 ships-from-manu MAF will need to be

MAF will need to be re-scaled upon installation

• Street and track torture tested

Choose the kit that best suits your needs below

Gauges that will fit All gauges will fit if they are upto 2" in dept

250% increase in torque capactiy

Cobb Air Oil Separator Subaru WRX 2002-2007 / STI 2004-2007 | 811615 ships-from-manu MAF will need to beFitment Information: 2002 2007 Subaru WRX 2004 2007 Subaru STI 2004 2008 Subaru Forester XT The COBB Subaru Air Oil Separator helps to prevent crankcase oil vapors from recirculating back through your engine's intake system. Oil vapors passing through your engine's intake system lower the effective octane rating of fuel and can contribute to both oil and carbon buildup over time. Features: 1 Liter Holding Capacity Integrated ORB Ports Compact Cast