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muffler delete

  1. Muffler delete drone

    2008-2013 Cadillac CTS Performance Mods
    Hi i just got a muffler delete on my 09 cts sedan, there is alot of drone and was wondering if tgere was anything that could be done to cancel the drone, i was thinking maybe an extra set of resonators in the place of the old mufflers. Has anyone tried this or does anyone have any other...