The CSP 4 tune will be sent via email, and you will need an EFILive V2 or AutoCal to load the tune into your vehicle. Please select desired horsepower along with other options specified.
Further, for owners of 68RFE automatic transmission equipped trucks, you have the option to add transmission tuning. One of the major benefits of having such an electronically controlled transmission are that so many factors, such as converter lock up, line pressure, and shift patterns can be controlled electronically.
Transmission Tuning Details: