OneFine89Mustang

i have a h pipe with glasspacks no rasp at all i like it ten times better then flowmasters.

gspfunk

Get a MAC prochamber!!!!!!!!! Otherwise go w/ an offroad H. The price difference in the X and H is not worth it.

92fox50

I used to have an Hpipe and when my buddy installed his bassani x pipe i went out and bought an xpipe....with all the other mods i have i really think the xpipe sounds throatier....to me it's an overall better sound and as far as hp, don't really notice the difference, has to be minimal if anything. i have an off road x, but i'm thinking about getting a new x pipe with cats,,,because of having such a hard time getting a sticker....

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88BlueGT

I personally also like the H pipe better and as you seen from the dyno chart... they do out perform the X (depending on application).