GrimmSpeed Black Air Oil Separator 2002-2007 WRX / 2004-2021 STI

DESCRIPTION

The GrimmSpeed Air/Oil Separator for turbocharged Subaru models has a unique design that allows you to maintain your PCV Valve while separating the oil out of the crankcase and head ventilation air! Our AOS will allow your engine to run more efficiently due to the separation of oil from the intake system. When there is oil in your system, the result is reduced fuel octane, higher chance of engine knock (detonation), worse emissions, and higher oil consumption. Our Air/Oil Separator will help all of these problems. In typical GrimmSpeed fashion, we have made a very compact unit that packs a powerful punch and looks good while doing it!

WHY?

Keeping oil out of your intake system can be difficult. The GrimmSpeed Black Air Oil Separator is the perfect solution. Easy to install and well designed this oil separator will keep your intake clean and car running smooth. 

FEATURES:

• Maintenance free design - no more draining your catch can

• Fully machined billet aluminum construction

• Durable anodized finish

• User replaceable O-ring seals

• Easy installtion

COMPATIBILITY

2002-2007 WRX

2004-2021 STI