Our 68RFE Tuning is strongly recommended to increase the life of your transmission at higher HP and TQ. To find out which transmission you have, pop the hood and stand in front of your truck. The 68RFE has the transmission dip stick on the passenger side as opposed to the driver side.
Our TCM Tuning is highly recommended for all T87 & A50 controllers. It has an aggressive Line PSI slope which will model a torque curve 100% above stock. The Line PSI is modified to retain mileage but may result in a small decrease fuel efficiency.