The GDP DSP5 switch is intended for use with existing Efi Live tuning for any 2001-2010 GM Duramax. Your tuning must be setup for switchable (shift on the fly) tuning.
Important Note: Please verify that your tuning is setup to work with a dsp5 switch and select the correct option for your application above!
Features & Benefits:
- Shift On The Fly Tune Selection
- Includes Everything Needed For Installation
