Choose between 5 different power levels with the turn of a dial! 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. OPTIMIZED STOCK: + 10 HP, + 20 ft-lbs torque Delete dead pedal Leaves factory rev limit in place 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) 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. Year Engine Pull Fuse Pull Fuse Pull Fuse Pull Fuse Fuse Locations 2001 LB7 SEO-1 SEO-2 Driver-side dash fuse panel 2002 LB7 SEO-1 SEO-2 Driver-side dash fuse panel 2003 LB7 TBC BATT TBC IGNITION INFO RADIO Driver-side Engine Bay Fuse Box 2004 LB7 TBC BATT TBC IGNITION INFO RADIO Driver-side Engine Bay Fuse Box 2004.5 LLY TBC BATT TBC IGNITION INFO RADIO Driver-side Engine Bay Fuse Box 2005 LLY TBC BATT TBC IGNITION INFO RADIO Driver-side Engine Bay Fuse Box