Diesel Switch by HP Tuners lets you power up from a stock calibration to one of five custom maps with the turn of a switch. Pair with HP Tuners' Switch on the Fly OS for complete control and performance of your diesel.
HP Tuners Diesel Switch (GM E41-L5P)
HPT 6-Position Diesel Switch
Diesel Switch (GM E41-L5P)
HP Tuners Accessory Switch
Accessory Switch
