Cobb Delrin Oil Cap - Subaru WRX 2002+ / STi 2004+ / Forester XT 2004-2018 (+Additional Fitments) pistons/rings - Specifically designed to each

- Specifically designed to each vehicle

150% increase in torque capacity

The system is a direct bolt-on upgrade that requires no trimming and is recommended at every stage of performance

The top dog

Cobb Delrin Oil Cap - Subaru WRX 2002+ / STi 2004+ / Forester XT 2004-2018 (+Additional Fitments) pistons/rings - Specifically designed to eachThe COBB Delrin Oil Cap's construction of pure medical grade black Delrin means it does not absorb heat like many aluminum options. The included seal and shims ensure an OEM like fitment and guarantee proper orientation. It's fluted design around the edges provides excellent grip. Have you noticed the fingerprint recognition on your mobile device does not work after having to add oil to your Subaru at the track? The COBB Delrin Oil Cap will not absorb