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Thread: Exhaust performance

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    Default Exhaust performance

    ok so im putting an exhaust on my 240sx coupe with DE and i just got a great deal on a #1 drag thats 2.5 in and 4.5 out and the barrel is huge as hell but my bigest worry is what effects it will have on my HP and performance ??

    I know alot off ppl talk about back pressure and etc.
    Last edited by wHtKoNgDrIfT; 08-03-2007 at 01:15 AM.

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