Me and a buddy dyno'ed our cars on the same day. Our cars are 94-95 Cobras with the same mods except for exhaust. He had longtubes and offroad x-pipe. I had stock headers and Catted Bassani x-pipe. He dyno'ed at 272hp/315tq vs. my 242hp/285tq. Is that really what longtubes and offroad x-pipe is worth?!! I wouldn't believe it if I didn't see it with my own eyes.

I need long tubes big time, then I'd be on my way to smoking my friend's 2004 GT 