GDP TUNING DIGITAL DSP5 SWITCH WITH HIGH IDLE 2006-2010 GM 6.6L DURAMAX
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GDP Tuning's Digital DSP-5 switch allows you to easily change your EFI LIVE or EZ LYNK DSP-5 tune at the push of a button. Large 1″ LED numerical display clearly shows what tune you are in, even at a quick glance.