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what kind of power gains can you get with the exhaust manifolds and h pipe. Also would gm try to void the warranty for this I know every dealership is different what are your guys thoughts. Thanks
Last edited by ls3power; Jul 13, 2009 at 05:41 PM.
With the warranty issue a general answer would be that really only the exhaust part of the warranty would be voided. But your best bet would be to call your local dealership and speak to the service manager, act as if your girlfriend(or wife or you if you want) bought an exhaust modded C6 and she wanted to know what warranty issues there might be. Easy way to remain anonymous and they should be fairly honest, of course we all know there are VERY different dealerships out there and so you never know.