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a/c pipe vibration

  1. 2008 mustang v6 w/ gt dual exhaust vibration with a/c on

    I just installed my dual exhaust today with the pypes x-pipe, gt mids, and gt takeoff mufflers. I have a vibration when I'm stopped and its idling. It only does it when the A/C is on. The x-pipe is shaking and causing the noise. My car is a 2008 so it doesn't have the transmission cross-member...