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California Exhaust Question
Looking for advice for exhaust info for 2001 Boxster S ( 4 Cats).
I want my car to be legal and i bought headers for it which have two O2 sensor ports each, but I need to know if I can replace the to stock cat’s with just two and still have it pass California Smog tests…? Also, did I mention that I don’t want to spend a ton either for it…
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