Just wondering is anyone here doing it and why? I've got a friend w/ a T-trim, 304ci big bore 32v in his 96 Cobra who was told he must have 2 bpv's. He was told it'll run like crap if he doesn't. I've never heard of this and did some searching and didn't find anything. He's running close to 18psi just in case anyone was wondering.

 

I'm running a bypass and a Blow off valve but thats only because neither one is big enough by itself. The story you just told sounds like BS to me.

 

Running 2 Evolution motorsports bypass valves. 383 - D1.

 

procharger bypass and a greddy copy here.