levin bmw is pretty straight with mods. except one time this guy brought in his e46 m3 with intercooled pro charger and exhaust cutouts and header and downpipes and said it sounded like an exhaust leak and the tech look looked at him like he was retarded (obviously the cutouts were causing the noise). but we've got a guy who always gets his 335 serviced and he has no cats full race exhaust, a cdv, and is lowering it soon and no one cares.
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