Grimmspeed Air Oil Separator (Red) - Subaru STI VA Electronic we've been able to fit

we've been able to fit all EJ and FA20DIT WRX and STI sedans from 2011 to current

while continuous (back-to-back) dyno pulls start at 174 degrees and end around 197 degrees

The stiffer calipers and stainless steel lines reduce system compliance

The Clutch Masters FX200 is recommended for the STI with a little more than just basic bolt-ons

Program Oil Temperature Warning (outer LED

Grimmspeed Air Oil Separator (Red) - Subaru STI VA Electronic we've been able to fitFits 2015+ Subaru STI An Air Oil Separator has one job, remove the oil from the engine ventilation system so the oil does not get sent through the intake system. The GrimmSpeed AOS is unique as it 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