LB7, LLY, LBZ & LMM EGR Delete +DSP 5 tune with AutoCal

Remove EGR Cooler, Cat or DPF filter, if applicable your LB7, LLY & LBZ Duramax, increase Hp, increase fuel mileage and durability.

The tune will have stock plus 4 of the following HP levels that can be switched on the fly

This is meant for trucks that already have the switch installed.

Or check out the store to purchase a DSP 5 switch.

Flash this custom build tune into your vehicle using included Autocal device.

At checkout please provide vehicle VIN so a proper file can be build the modified.

Cab and Chassis owners, please send VIN before ordering to confirm availability.