Fish Tuning DSP5 Switch - 06-10 GM Duramax LBZ/LMM - DSP5LBZ/LMM

The DSP5 Switch for your GM 6.6L Duramax works in conjunction with EFI Live Tuning. With the DSP5 switch, you can change your tuning "on-the-fly". Tuning is not included; you must have DSP5 Tuning for use with this switch.

Features:

• For Use With DSP5 Tuning
• Includes Needed Components For Installation