Unlock your GM Duramax L5P’s full potential with this heavy-duty TCM Tuning Bundle.
Built for diesel owners who demand smoother shifts, better towing power and bulletproof reliability, this kit upgrades your transmission with precision tuning—no guesswork required. Perfect for off-road use or race trucks, it’s the ultimate add-on for 2017–2023 L5P Duramax engines.
Why This Bundle Works for You:
- Fix Sluggish Shifting: Revamped shift points, torque converter lock-up and line pressure eliminate factory lag.
- Year-Specific TCM: Choose the T87A (2017–2019) or T93 (2020–2023) TCM for a perfect fit.
- Includes Tuning Credits: 4 credits let you customize files for your truck’s unique setup.
- Built for Off-Road: Optimized for deleted trucks (DPF/DEF/EGR removed).
What’s in the Box:
- Unlocked TCM (T87A or T93, based on your model year)
- Custom TCM Tune File
- 4 Credits
Need the OBD2 Interface?
Already own it? Provide your interface’s serial number at checkout.
Don’t have it? Grab our All-In-One Delete Kit (includes the OBD2 tool).
How to Order Custom Files:
Complete Your Purchase (save your order number).
Click “Submit Vehicle Details” (top of the page).
Share your truck’s specs—we’ll build your tune.
Important Notes:
Off-Road Use Only: Not legal for street use in emissions-regulated areas.
Final Sale: No returns—double-check compatibility before buying.
Works With: 2017–2023 L5P Duramax trucks (6-speed or 10-speed transmissions).
Upgrade Your TCM Today—No More Guessing!
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 dpfdeletetunes—where dedication meets performance.