EFILive Single 2004.5-2005 LLY Duramax Tune

Choose your favourite of the 5 power levels. Regardless of what your truck is used for we have a solution to suit your needs!

Add transmission tuning to improve shift schedule and timing. Recommended when running larger tires.

If you want to be able to choose between ALL 5 with the press of a button go HERE:

HEAVY TOW

• For towing from 8,000lbs up to Gross Vehicle Weight Rating
• Wider torque curve assists heavy loads
• + 40 RWHP, + 80 ft-lbs torque
• Exhaust temperatures drop up to 100F under full load

LIGHT TOW

• For those towing below 8,000lbs
• Designed for weekend tower, boats, small tractors, etc
• Unhook and enjoy a sportier drive
• + 60HP, + 120 ft-lbs torque  

SPORT ECONOMY

• Fun “unloaded” daily driving
• For driving around town, highways
• + 80 RWHP, +160 ft-lbs torque
• Puts your vehicle near the 400 RWHP mark

RACE

• +100 RWHP, +200 ft-lbs torque
• Recommend transmission tune to avoid premature wear
• Great for daily driving (depending on driving habits)
  

OPTIMIZED STOCK:

• + 10 HP, + 20 ft-lbs torque
• Delete dead pedal
• Leaves factory rev limit in place

The LB7 and LLY Duramax's can be difficult to flash. Based on you vehicle year, you may need to pull the following fuses to help the flash go through. Some will end up needing to be bench flashed, especially the ECM has been locked with previous tuning.