LM2/LZ0 3L Single Tune (2020-2025) -HP

Tuned using MPVI4 on TDN only (MPVI3  and older unsupported)

Mail in Unlock is required, be sure to order the correct unlock based on your truck's controller

Tuned for better fuel economy and custom modification support

OPTIMIZED STOCK:

• + 5 RWHP, + 10 ft-lbs torque
• Refined factory power output

TOW TUNE

• For those towing anything behind their 3L Duramax up to GVWR
• Perfect balance of sport driving & functionality
• Much wider torque curve
  
• + 25 RWHP, + 40 ft-lbs torque  

SPORT TUNE

• Designed for unloaded daily driving (not towing)
• Wider torque curve assists heavy loads
• + 40 RWHP, + 100 ft-lbs torque

KNOWN TO SMOKE ON COLD START WITHOUT CAT ON SOME MODELS