The GMMG isn't even close to being as loud and obnoxious as the original 69 chambered exhaust. The Loudmouth is much worse than the GMMG. But it's still a valid point. Fart pipe exhausts are even more annoying than chambered exhaust. So get something like the Random Tech cat-back I have that is nice and mellow under most conditions, but it's a straight through muffler with minimal perforations and opens up big time at WOT. Just ask Kasey how "quiet" my longtube, dual cat, cat-back was on the dyno!
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