Designed for GM Duramax 6.6L LB7 (2001-2004) engines
Designed for GM Duramax 6.6L LLY (2004.5-2005) engines
Designed for GM Duramax 6.6L LBZ/LMM (2006-2010) engines
Designed for GM Duramax 6.6L LML (2011-2016) engines
Variant available for GM Duramax L5P (2017-2023) engines
SOTF switch connects to specific ECM pins (model-dependent wiring)
LB7 SOTF switch wiring: Blue wire to pin 69, Black wire to pin 49
LLY SOTF switch wiring: Purple wire to pin 32, Black wire to pin 50
LBZ/LMM SOTF switch wiring: Grey wire to pin 46, Black wire to pin 54
LML SOTF switch wiring: Yellow wire to pin 11, Black wire to pin 35
Includes selector switch with high-temperature-rated wire
Includes black aluminum knurled knob
Includes 1-5 decal for switch positions
Intended for use with EFILive DSP5 tuning for on-the-fly tune changes
Sold as final sale item (no returns)
Product labeled "For off-road use only"
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.