Ock
Well-Known Member
https://www.mustang6g.com/forums/threads/rattle-update-2018-gt.166652/Curious about what situation you're referring to... Over the years I've done cat-back exhaust work on lots of cars and never had a dealer say a word about it. What was the issue?
short story... gutted cats/tune that i knew nothing about when i bought it almost cost me my replacement engine.
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