Quote:
Originally Posted by aus
Most likely not in Cali. ALL parameters have to be ok to pass. Many states allow one reading not ok and will still pass.
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my s2000 passed with headers, hfc, and hks hi power single.
but im not sure if you can with the m3 since you have a lot more going on.
im actually about to say frick it, and use my friends OEM XPIPE. rather not deal with the headache.