COBB COBB By Pass Valve partNumber: 712665

Added this bypass valve because I'll be going up in power to where the OEM bypass valve may not handle over 21psi. This valve is lighter and faster reacting compared to the XLE. A thicker and more durable oring seals the piston for better reliability. I love that the top vacuum nipple has a full 360° rotation for unlimited configuration of lines. I don't care for loud blowoff noises so I'm glad Cobb did away with the 50/50 settings as I only want it set to recirc. Overall, totally happy with th4 purchase.

really easy install, high quality product and i can tell that it holds the boost better than the stock one

Love the product, works perfect and installation was a piece of cake

Great product. Had this installed for a full stage3 2014 sti that put down 360hp. Zero issues and looks great. Much louder discharge noise if you like that type of thing.

super ez install. Only issues was reusing the thin paper gasket. other than that. Zero issues. seemed to fit a bit too snug between the intake and intercooler though

Easy installation, fits just like stock unit. Holds boost like a dream and looks great at the meet!

Is awesome. Perfect fit and sounds amazing. Recommended.

I like this product, high quality material and it hit and keeps the boost better

+ Excellent fit and finish; quality construction + Adjustable vacuum hose connection. + Diverter sound seems crisper than the OE valve - The one shipped to me didn't include a new gasket; not sure if oversight or just not included

Just bought and installed the Cobb bpv the aluminum barb is super fragile. The tip snapped off the barb. The center bolt to lock down the barb strips because of the thin cheap body it threads into. Definitely need a tune with this valve. I have all kinds of idle and throttle cut with this valve. Good luck everyone. Don't waste your time or money like I did.