I was wondering if your JIC down pipe for the evo 8 is 3 inches? Also does it replace the catalytic converter and mate directly to the cat back exhaust? The one on the JIC web site says it does replace the cat. The part number is CT9FP-sus. Do you carry this? Does the Down pipe replace the stock O2 housing and if it does will it also include an O2 bung? I also had a question about your cat back system. Does it have a resonator and if it does is there a restrictor inside that is 2.5 inches in diameter at that point?