Thread: CALI guys; what are you doing to pass smog?
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      02-28-2020, 08:37 AM   #193
BrutalN54
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Drives: 2008 e92 335i
Join Date: Feb 2018
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Quote:
Originally Posted by jxcal View Post
i have a muffler delete on a e90 328i i just bought would that effect smog at all?
100% most, if not all smog techs know all BMW's are supposed to have mufflers so they'll fail your visual
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