Killer B Motorsport Air Oil Separator w/ Plumbing 2008-2014 WRX / 2008-2021 STI / 2005-2009 Legacy GT / 2005-2009 Outback XT Promo2500 but verify your vehicle’s year

but verify your vehicle’s year and trim to confirm fitment

designed to significantly improve intake air cooling and support higher boost levels

these forged pistons are ideal for high-output builds

Magnetic drain plug captures metallic debris for longer system life

6× 3/8" Washers

Killer B Motorsport Air Oil Separator w/ Plumbing 2008-2014 WRX / 2008-2021 STI / 2005-2009 Legacy GT / 2005-2009 Outback XT Promo2500 but verify your vehicle’s yearKiller B Motorsport recently released the FA20 & GD GR WRX Air Oil Separators. This is a product theyve been asked to develop for many years, and in that time there has been a lot of research, engineering, simulations, development, testing (and repeat), with several Subaru engines and build types. This has been going on over many seasons, exposing to environmental extremes, and driving conditions (daily driving, auto X, drag racing, dyno testing,