GDP Tuning's DSP-5 switch w/high idle | 01 - 04 Duramax LB7
GDP Tuning's DSP-5 switch allows you to easily change your EFILive DSP-5 tune at the twist of a switch.
- 6 position switch
- High Idle Control
- Adjustablilty through cruise control switch
- Will work with or without Tunes for high idle
- Patent Pending