CTT HP Tuners L5P Tuning (2017-2020)
You must provide us with a read file of the unlocked ECM per HP Tuners instructions.
*Always tune and run the truck before touching anything on the truck. Not doing so will cause a message to be stored on the dash.*
*The L5P plug kit is required on all tuned L5P trucks.*
Please see the HP Tuners installation guide at the link below.