I pulled the trigger on a pair of kooks 1 7/8" long tubes, and their "green cat" boss H-pipe. They advertise that these will not throw any codes, but I've been getting "CAT insufficient" codes from both banks? I contacted Kooks, and they said a few cars have been having issues, and they are working on a fix. Anyone else with the problem, or hear from Kooks in reference to a fix?