I wouldn't do a muffler delete - it'll be loud and it will drone, and you won't like that. On a 328, an aftermarket muffler with a better sound would be relatively inexpensive as compared to the 335i exhaust system.
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2015 F80 ///M3 Sedan 7DCT Tanzanite, 2022 X3 sDrive30i 8AT Brooklyn Grey
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