Fits GM Duramax vehicles from 2001-2016: Chevrolet Silverado 2500 & 3500 and GMC Sierra Denali 2500 & 3500 with 6.6L Duramax engines, including 2007.5-2016 LMM & LML Cab & Chassis models where specific tunes are offered (explicit compatibility list)
Requires existing EFI Live AutoCal device to use additional tune files
Includes tune files with the following power level options: Stock, Eco/Tow +65HP, Street +100HP, Max Power +130 HP
Does not support PTO units; using these tunes may disable the PTO system
Process requires contacting support with AutoCal Serial Number and VIN to generate custom tune files
For off-road use only as stated in the product description
Vehicle info must be submitted after order for custom tune creation
Offered in variants matching specific Duramax engine generations (LB7, LLY, LBZ/LMM, LML)
Off-Road Use Disclaimer:
All items offered on this site are engineered strictly for off-road, competition, or closed-course use. They are not certified for street use where emissions compliance or environmental regulations are enforced.
Legal Compliance Reminder:
Before buying or installing any component, consult your local and regional laws to ensure that these upgrades are permitted in your jurisdiction. Some modifications may be restricted or prohibited.
Installation Advisory:
Due to the technical nature of these parts, we highly advise having them installed by experienced automotive professionals. Incorrect installation can result in vehicle malfunction or damage. Unless otherwise noted on a product’s page, installation guides are not included. These products are meant for those with advanced mechanical expertise. As with most universal or aftermarket parts, slight modifications may be necessary to complete installation. We cannot process returns or issue refunds based on installation challenges or lack of instructions.
Vehicle Warranty Notice:
Installing these components will likely void your factory vehicle warranty. Always verify with your manufacturer before proceeding.
Limitation of Responsibility:
dpfdeletetunes accepts no liability for damages, performance issues, or failures resulting from the use or misuse of any products sold.
Product Visuals Disclaimer:
Images displayed are for general reference only. Actual product appearance may vary due to ongoing design changes or manufacturer revisions.
Performance Disclaimer:
While our products are built to support enhanced vehicle performance, individual results will vary. We do not guarantee specific horsepower gains or performance improvements.
Weather Delays:
Although we strive to process and ship orders swiftly, extreme weather conditions—such as heavy rain, snow, or ice—can impact delivery schedules. Please know that we’ll do everything possible to work around these disruptions and minimize any delays.
Holiday Closures:
Our team takes necessary breaks during recognized holidays, during which our shipping operations will be paused. Shipments will resume the next business day. During high-demand holiday seasons, slight delays may occur, but we’ll keep you updated and prioritize getting your order out as quickly as possible.
Team Capacity:
Occasionally, unexpected events may affect staffing levels. While rare, this can result in minor delays. Rest assured, we’re always working behind the scenes to maintain smooth operations and uphold our service standards.
We sincerely value your patience and understanding when unpredictable challenges arise. Our goal remains the same: to get your performance parts to you as quickly and reliably as possible.
Thank you for choosing Dynamic Diesels—where dedication meets performance.