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      02-02-2017, 09:18 AM   #6
aps
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Drives: 2018 M3 ZCP
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Quote:
Originally Posted by mike@x-ph.com View Post
JB4 will hide downpipe code so you are good there... All there other mods will not throw any codes.

Getting the IC at the same time as the charge pipe will save you time and money on labor
But not from all emissions tests depending on what state you're in. I'm not sure about AZ, but you should check what kind of emissions testing they do before going catless...
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