ETS Blow Off Valve Pipe 2015-2021 Subaru WRX 900 Under head dish is maximized

Under head dish is maximized for weight savings while swirl polished and backcut heads promote better air flow without sacrificing durability

This isn't as easy as it sounds - on the Ram

Reason being is that the factory end links are made of plastic

Replacement of this component is required whenever the timing belt is removed from your 4G63

ETS Blow Off Valve Pipe 2015-2021 Subaru WRX 900 Under head dish is maximizedFitment Information: 2015 2021 Subaru WRX Features: Includes AIT Bung + Plug Does NOT include BOV (Sold Separately) Requires ETS Piping kit This is a replacement blow off valve pipe for a 15+ Subaru WRX, it will allow you to swap out for a different BOV from another manufacturer.