2001-2007 LB7, LLY and LBZ GM Duramax 6.6L Superchips Flashpaq Programmer. Add up to 125 HP and 200 ft. lbs of torque. Use the Flashpaq to remove speed limiter, rev limiter, diagnose trouble codes, reprogram for tire and gear changes*, and you will be able to review this information on your PC. The Flashpaq is internet upgradable.

*2001 year models cannot adjust tire sizes or rev/speed limiters.