Hey guys jus tryin to get some opinions here. When is it needed to run a 3" downpipe? Im currently in the middle of a build and have been tryin to figure out if 3" is needed or not.... I'ma be running e85, s259 Turbo, ported heads, ST4 cam n blahh blahh. Hopefully a little above six after I'm done and on the dyno. I have 2.5"already moded with the 3" v-band(to hook to the Turbo).
Will I be good you think on jus the 2.5 or? I already have an exhaust dump welded on the tog dp into a non catted 3"zzp exhaust too. Thanks guys!!
