Radium AOS-R Air Oil Separator for 08+ EJ WRX/STi (20-0607) Seibon Also adds protection against dirt

Also adds protection against dirt

the STM -12AN Balance Shaft Breather Fitting is an aluminum weld-on piece to attach right to your front cover

• Laser Etched COBB Logo

or larger bore sizes

Radium AOS-R Air Oil Separator for 08+ EJ WRX/STi (20-0607) Seibon Also adds protection against dirtRadium AOS R for 2008 2014 Subaru WRX and 2008 2021 STi. The AOS (Air Oil Separator) keeps blow by oil out of the intake pipe, manifold, turbo and intercooler. The AOS "R" system "returns" what is collected back into the oil pan so there is no servicing required! Vehicle Fitment: 2008 2014 Subaru WRX 2008 2021 Subaru STi Fits LHD left hand drive ONLY Install Notes: The Radium AOS R kit may not be compatible with all other aftermarket products. Install