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77 Posts
I'm finally gonna get rid of the flowmaster 40 and put in a true dual system from the headers back. I found my headers, bought a Bassani X pipe, think I'm gonna go with the Dynomax Ultra Flow mufflers and dump them right before the axle. I've already dropped the cash for the x pipe, but I'm wondering if anyone has an x pipe on their truck or the same muffler I'm going to use? Performance gains, mileage gains(doubtful), overall sound quality, any other tidbits would be appreciated.