I've found a CO Mach 1, only problem is it has bbk LT and uncatted H pipe. The programmer is missing, so I was told if I buy BBks catted x pipe to not expect it to pass emissions as the cats are poor quality, I didn't want to have to throw a whole new exhaust at it like I had to do to my CO cobra to get it to pass, I really like the car( having 2 CO cars) help me solve my dilemma, are there only 2x O2s or 4x like my cobra has? Has anyone else tried another mid pipe fitment to bbk LT?