Getadomtune Blow-by Retention Cap “Mostly Oil” Oil Cap Subaru WRX / STI / Forester XT / Legacy GT vendor_Ohlins Lighter weight means stock trunk

Lighter weight means stock trunk struts may open the lid too quickly

and/or Bumper light setups

Part #: COP-518

Fitment Note: This product fits with most front-mounted intercoolers

Getadomtune Blow-by Retention Cap “Mostly Oil” Oil Cap Subaru WRX / STI / Forester XT / Legacy GT vendor_Ohlins Lighter weight means stock trunkAdd Personality to Your Engine Bay While Keeping Things Sealed Not every engine bay upgrade has to be serious. The GetaDomTune "Mostly Oil" Blow By Retention Cap combines premium billet construction with the humor every Subaru enthusiast understands. Whether you're building a show car, weekend track toy, or daily driven WRX or STI, this oil cap adds a unique touch that stands out every time the hood is opened. Inspired by the reality of crankcase blow