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I have an 07' M6 with CORSA Extreme cat back exhaust. I want to get headers, free flow cats and x pipe. Can someone direct me to the best set up for my car and Corsa's? Here's the link to MA Motorworks parts list. Which header system will work best? http://www.mamotorworks.com/corvette.html?category=7.36
They will not pass any smog test. The cats have been relocated or removed which is a Federal problem and no headers are CARB approved.
This is true and they may enforce it if they do a visual inspection. I have heard that some CF members have passed the sniffer test with high high flow cats. Also some states just check for OBD codes and if you don't have any you pass. Arizona is one of those.
I would probably go with LG if I had it to do over again. Kooks shipped me the wrong mid-pipes and I am having issues getting the right ones shipped to my tuner. So my car is finished with all mods awaiting resolution to the wrong parts being shipped up front. That probably would not have been so bad if I had not waited a month to get my order to start with!
Call me so I can get this resolved for you 1 866 586 kook ext 308