![LB7, LLY, LBZ & LMM EGR Delete +Hp mail in ECM or Local](http://derkscustomcars.com/cdn/shop/products/efilive_ee8c7c60-389b-4de6-84bd-ab420a7ddf9b_{width}x.jpg?v=1636902258)
LB7, LLY, LBZ & LMM EGR Delete +Hp mail in ECM or Local
Remove EGR & Cat, if applicable from your LB7, LLY, LBZ & LMM Duramax, increase Hp, increase fuel mileage and durability.
Pick from one of the following Horsepower level:
- Tow,
- 60 HP,
- 80 HP,
- 100 HP
Send in your ECM or stop by at our shop and we will install the selected tune into your ECM.
At checkout please provide vehicle VIN so a proper file can be build and email you the modified files