Thread: Exhaust System Pass SMOG
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      12-14-2018, 06:56 PM   #7
fastmike
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Drives: E93 M3
Join Date: Mar 2011
Location: USA

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Quote:
Originally Posted by 0_to_60 View Post
they do a visual + obd2 emission monitor read during inspection
They do a visual, pop the hood, look underneath the car. I only have the OEM mod with tips so I can't comment if aftermarket exhaust would pass.
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