Diablosport as released their new tuner for the 2006 LLY/LBZ motors! PM for pricing - way to low to post. I'll throw in free shipping to! Sale until July 31st. 2006 Duramax 6.6 L LLY/LBZ Engine 2500 HD, 3500 HD, Kodiak Tune changes take less then 45 seconds The only flash tuner on the market to accept custom DiabloSport programs from out nationwide network of CMR dealers. Features advanced diagnostic capabilities including checking and clearing diagnostic trouble codes and data-logging/monitoring. Large backlit screen over 300% larger than most competitors. Tire Size/ axle ratio Adjustment in inches AND standard metric Raises or lowers speed limiter to 60 mph-155mph Five Performance Tunes: Modify Stock-40-65-85-120 HP Tunes Stock Tune- Stock HP and TQ with adjustable Speed limiter and Gear/Tire size Tow Tune -40 HP and 100-ft/lb TQ Performance Tune made specifically for towing. DiabloSport recommended weight limitations based on manufacturer suggested limits for the vehicle. Economy Performance- 60HP and 140-ft/lb TQ Performance Tune designed for Economy and Performance, fuel economy depends solely on driving style, and will vary from vehicle to vehicle. DiabloSport recommended weight limitations of 8000 Lb. Performance Tune- 85 HP and 170-ft/lb TQ Performance Tune designed specifically for performance street driving. DiabloSport recommends this tune not be used for towing. Performance Tune- 120 HP and 250-ft/lb TQ Performance Tune designed specifically for performance street driving. DiabloSport recommends this tune not be used for towing. Extended Speed Limiters Speed limiter to approximately 120 MPH, this may vary based on vehicle set-up; weight, tire size, 2wd vs. 4wd, etc. Speedometer Re-calibration Re-calibrates speedometer for gear and/or tire size changes. Diesel Specific Diagnostic Tool Duramax Predator can read and erase fault codes, monitor live data and contains all the diesel specific āPā codes for the vehicle.