Anarchy Mercenary Auto-cal 2004.5-2010 Duramax with DSP-5 switch

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Mercenary autocal tuner for your LLY, LBZ, or LMM equipped vehicle.  Tuner comes with 5 power levels that are switch on the fly.  Power levels vary by year model.  DSP-5 switch included so you can change levels with the turn of a switch.  YOU MUST ENTER THE complete VIN and COMPLETE NUMERIC TIRE Size OF YOUR VEHICLE