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muffler upgrade
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  1. Pentastar 3.6L Exhaust
    So do you all think there is really much difference between getting a full cat back exhaust or just replacing the mufflers? Say I'm looking at the Magnaflows. Our system is Stainless with a built in X-pipe. That used to be a big reason to upgrade. But if we already have that, why not just get...
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