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  1. #1
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    Lightbulb 07' Grand Prix GXP

    So the ebay mufflers I see online, are they any good? I don't just see myself spending 200 plus on a exhaust.. I have the resonator cut off, what type of mufflers could I get to give it a decent V8 sound.

  2. #2
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Default Re: 07' Grand Prix GXP

    Ebay could mean like 500 different brands from china or wherever. What exactly are you looking at?

    Magnaflow or dynopro mufflers are under 100 each when you only need like 2 1/4in sized mufflers.

    Just be aware that any aftermarket muffler will sound like a helicopter when it goes down into 4 cylinder mode. The factory mufflers do a better job at muffling that sound. Ideally you'd want to disable the AFM/DoD system before it gives you a problem anyway.

    SMGPFC Member #1

  3. #3
    GrandPrix Junkie SgtMarshal's Avatar
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    Default Re: 07' Grand Prix GXP

    I would follow overkills recipe

    http://www.getoverkilled.ca/LS4tech.html

  4. #4
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    Default Re: 07' Grand Prix GXP

    Thanks, I have DOD disable in tune already. I already cut resonator off, just wanting something that gives a better V8 sound. Not a real performance boost.. I did check out the site and it had some good stuff in it, thank you.

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