04-09-2008, 10:37 AM

triathlonx13 triathlonx13 is offline

Ultimate Warrior

Join Date: Aug 2007

Location: NY

Posts: 2,300

I've got 3" on my 68 GTO that has 400 to 425 hp..... I'm going back to 2.5". With 3"... their louder and take up some room... at my horse power - doesn't do anything. I say a good 2.5" system with an X or H cross over.

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