COBB Tuning Air Oil Separator Black/Red - Subaru Models (inc. 2008-2021 STI / 2008-2014 WRX) PDM_air-boxes Powder-coated hyper pink to add

Powder-coated hyper pink to add more color and style while being corrosion resistant

Go Fast Bits G-FORCE III Electronic Boost Controller

Billet compressor wheel

-8AN drain outlet fitting

Torque Solution mounts will deliver the performance you need under all conditions

COBB Tuning Air Oil Separator Black/Red - Subaru Models (inc. 2008-2021 STI / 2008-2014 WRX) PDM_air-boxes Powder-coated hyper pink to addKeep Oil Out of Your Intake Charge The Cobb Air Oil Separator for the 2008 2021 Subaru WRX STI captures the oil vapor that the factory PCV system vents back into the intake path and separates it before it reaches the turbocharger and intercooler. On a turbocharged Subaru EJ or FA engine, PCV oil vapor coats the inside of the charge pipes, intercooler core, and intake manifold with an oil film over time reducing intercooler efficiency and introducing