Quote:
Originally Posted by pbonsalb
Has not happened in my state yet, but I have the ability to flash back to stock and swap in stock primaries if needed. Must be that CA standard that some other states have adopted including some on the East coast. Like others have said, the stock BMW cars at least on the F90 M5 are high flowing. There are also expensive aftermarket HJS cats that flow even better and will pass emissions.
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Mid-West states, too. It’s a decent scattering of states, not just WC and EC.