You can check out THIS in the How_To section of the forum. It's an install How-To, but includes sound clips taken of the same Jeep, same day, same camera, same distance, with stock, muffler delete, and Flowmaster Outlaw system. But that's just one exhaust system, and one persons "sounds great" is anothers "why would you do that?". So on YouBoob we can find this compendium of sound clips.
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Watch that and see which ones you like. Most of them are essentially the same when it comes down to installing them.
