HPTuners SOTF Switch Duramax LML Hard Parts Check out the GM E41

Check out the GM E41 ECM Service (L5P) instead

and a precise fit and finish

The customer is responsible for ensuring the core arrives safely and within the applicable return period

Cutoff Wheel (Wiz Wheel)

Expanded bandwidth and improved memory allow more parameters at higher speeds—comparable to a wired experience using VCM Scanner

HPTuners SOTF Switch Duramax LML Hard Parts Check out the GM E41Hardware 6 position rotary switch for HP Tuners L5P and Cummins (CM2450 and CM2350) Switch on the Fly OS. Please note that Diesel Switch is specific to the application you select. Diesel Switch is not universal interchangeable. Change maps at the turn of a switch. 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