) on a street car. The H or X union ballances any exhaust pressure differences between the two banks of cylinders, resulting in a smoother sound. I'm not an expert on the subject, but hopefully someone can chime in as to how it affects back-pressure. I believe a joined exhaust has less back-pressure due to the balancing effect, but I could be totally wrong on that count.Pokageek said:"When I bought my car, it came with independant exhaust pipes. It sounded nasty. There's nothing like the sound of an uncatte h-pipe."
"H-pipe IS independed exhaust?
MysteryMachine said:Yeah H's have a cross piece. For once I agree with the chip

x2 if you know the guys that were gonna do the straight pipes, just ask them how much it is to weld up and h-pipe. h-pipes def. sound a lot better than just straight. i also prefer them over x pipes. also, if your lookin cheap i think the summit h is only like $120 but i could be wrong.95Vert said:Why not have a local muffler shop make you an h-pipe. I know one here that will make one for $80.
rightPokageek said:Summit has an h-pipe for longtubes? Ok, I'll check. So all the h-pipe is, is 2 tubes with a center tube that has an OPEN connection to the pipes right? In otherwords that center tube is not CLOSED at both ends. Just checking..