Mercenary autocal tuner for your 2006-2007 LLY/LBZ equipped vehicle. This tuner comes with 5 power levels that are switch on the fly using either a DSP5 switch or the tuner itself. You can also use the Edge Insight CTS or CTSII or 3.
Switch must be wired directly into the ECM wiring harness for the DSP5 switch to work.
SPECIAL NOTE: ALL 2006 DURAMAX WILL BE CONSIDERED LBZ FROM A TUNING ASPECT
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