I was wondering if I did a muffler delete on my grand Prix would it damage the engine in anyway? I want to drive it for about two weeks with just the muffler delete then straight pipe it but if y'all can give me any heads up on if I can damage the motor or anything else by driving with out a muffler it would be a big help Thx..
My car has 150000 miles.
My car has an automatic transmission.
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