KD Custom ECM programming for Duramax LB7

All tunes are built as dual mode switchable but as these vehicles age I recommend not adding a switch. The tuning will default to the lower HP level which should be plenty safe for a stock transmission. The higher HP will push the limits of the stock transmission. Typical tune sets are 50 HP econ/tow and 100 HP performance tune. DSP2 switch sold separately.

LB7 Installation Instructions and Product Review

“This item requires an exchange ECM or we can provide one for an additional charge. Please see listings below.” – JK

Performance Tune Dyno Plot

When comparing dyno numbers, please note that my dyno plots do NOT use correction factors. These are no BS dyno runs with no inflation to make sales. -JK