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      12-21-2011, 11:01 AM   #20
Drives: M3 coupe
Join Date: Dec 2011
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Originally Posted by VVG View Post
That's fine, but how are all the people who do this passing emissions testing? In MA, it is an OBD plug-in and you have to pass both readiness and CEL functions.

Many shops will give you a sticker for $50-75.

Worst case you throw a stock x pipe back on and get your car inspected and then switch back.
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