Exhaust on the new 6.7
Thread Starter
Joined: Nov 2007
Posts: 2
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Exhaust on the new 6.7
Do any of you guys know what can be done to the exhaust on the new 6.7. I do not want it to be very loud. I'm looking for ways to improve fule mileage. I guess a little bit louder wouldnt hurt nothin.
