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red82gt · 02-11-2005, 02:17 PM

Don't bother with the 3" pipes unless you go to a set of headers with a real collector. You'll neck down for a shorty header collector and then open up into the big 3" pipe killing your velocity. The 2 1/2" stuff is more readily available (especially with cats). I'd bet that you'd see a 20rwhp gain from going to a high flow cat pipe.

02-11-2005, 02:17 PM	#17
red82gt Sober voice of Reason Join Date: Nov 1998 Location: Kelowna, B.C., Canada Posts: 1,514	Re: Dyno'd it - not happy at all.... Don't bother with the 3" pipes unless you go to a set of headers with a real collector. You'll neck down for a shorty header collector and then open up into the big 3" pipe killing your velocity. The 2 1/2" stuff is more readily available (especially with cats). I'd bet that you'd see a 20rwhp gain from going to a high flow cat pipe. __________________ 393W: AFR 205's, hydraulic roller, TKO600.