Flightmedic
Member
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- 2006 Mazdaspeed6 GT
I am going to be buying a new exhaust in the next few weeks and am torn between the single exit and the dual exhaust from cp-e. Does the single exit perform a lot better than the dual or is just for a better sound? I am also affraid if I bring in the car for state inspection they may fail it for only having one muffler. Does that matter? What did you guys use to fill in the extra hole after you went to the single exhaust?