Ok bought a cam sold the programer. It was the Superchips 2715. He has a RCSB 4x4 with straight pipes and a KN FPIK. I told him to be very carefull in not maxing out the shift points and be very conservative. No, problem with the shift points, but he said from a dead stop when he stomps on it he hears a loud whine comming from the motor area then the sound goes away? He does have a some mud tires but they are stock in size. I dont know.