has anybody built a custom dual-cat 3" y-pipe and if so what did you run into? i'm building one right now with a custom 3.5" catback and so far so good.

 

how much hp do you have?

 

wow sweet, post pics of routing please. should sound bad ***

 

im running a forged 383 fully-ported superram with zz-409 cam. shooting for about 450hp n/a but also using nitrous which is why i went with such a big exhaust. last thing i need is a blown head gasket because of backpressure. starting with a 150 shot first, then may try a 250 shot if i get the tune proper. so yeah, about 600-700hp total. the y-pipe is kinda a bitch because of tight clearance but i'll tell ya so far it's working ok. just gotta take the time to get it right. i'll post pics when it's done and hopefully a dyno later on.