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Hello everyone, ok guys i went to the track yesterday and everything seemed ok but today on my way to work the check engine light came on. the codes that popped up are p0420 and u1160. btw it seems to run ok. can someone help me out with this thanks.
Ok guys its been a couple of days and no codes yet, but I was thinking should I wait a couple more days or should I get some new cats and if so which ones should I go with stock or aftermarket like random tech cats, or should I save some cash and get some LT headers, and are any of them smog legal or will they pass the sniffer test.