I installed a set on my 2012 5.7, great product at a reasonable price. Everything is band clamped. Granted, I would have preferred headers with a ball/socket collector, but for the price with mids I am very happy. I was very surprised that I have no CEL after initial startup and Ive driven her about 10 miles 40 mph and lower. I won't take it over about 45% throttle until I can read some logs, then I will gradually increase so I can get descent logs to send to Sean at Hemifever so he can work his magic. Anybody else install LT with catless mids and get CEL on initial drive?