M Mustanggt108 New Member Sep 23, 2005 221 0 0 Oct 10, 2005 #1 Oct 10, 2005 #1 how much gains will a 04 GT see from an o/r H pipe(2.5 tubing) HP wise???
helty some Ukrainian's enjoying a handjob via my credit Mar 30, 2005 1,461 1 39 Baltimore, MD Oct 10, 2005 #2 Oct 10, 2005 #2 5-7 hp. guesstimate. MRT claims 9rwhp on their o/r H on a stock gt. "claims" being the key word.
blue46gt00 Member Mar 30, 2005 83 0 6 Oct 10, 2005 #3 Oct 10, 2005 #3 I don't know about HP but it will sound killer.
G GT 5spd New Member Apr 9, 2004 127 0 0 Oct 10, 2005 #4 Oct 10, 2005 #4 Get a Mac O/R Prochamber....I think statisticly they give you a lil more H/P but not much more......IMO they sound better than just a regular H-Pipe
Get a Mac O/R Prochamber....I think statisticly they give you a lil more H/P but not much more......IMO they sound better than just a regular H-Pipe