HomeShop by DepartmentPerformanceElectronicsAccessoriesDuramax Tuner DSP5 Switch - 15-18 2.8L Duramax Colorado/Canyon (4 Positions)
duramax-tuner-28DURAMAXDSP4
duramax tuner

Duramax Tuner DSP5 Switch - 15-18 2.8L Duramax Colorado/Canyon (4 Positions)

Thoroughbred Sku #: DUT31U1AA026
Manufacturer Sku #: 31U1AA026

Your Selected Vehicle Does Not Fit, Please Select a Vehicle

Select a Vehicle

Selected Vehicle

Select Vehicle

Year/Make/Model: {{year}} {{make.Name}} {{model.Name}} Edit

Item Options:

Shipping Restrictions:
This part is NOT available to ship to the state of California.


Quick Ship

$90.00

Applications:

View All applications

VERIFY VEHICLE FIT

Call Us For Free Advice

(859) 737-4966

Call Us For Free Advice

(859) 737-4966
duramax tuner

View More Products From

Duramax Tuner

Product Details

Product Name: Duramax Tuner DSP4 Switch
Manufacturer: Duramax Tuner
Manufacturer Part #: 31U1AA026
Thoroughbred Diesel Part #: DUT31U1AA026
Fitment Notes: 2015-2018 2.8L Duramax Colorado/Canyon (4 Positions) Switch

This is the new DSP5 Switch for Duramax owners who have EFI Live DSP5 tuning for their trucks. This price does NOT include the tuning, only the switch.

This switch plugs directly into the ODBII port and can be mounted in your dash or elsewhere in the vehicle and will switch between 4 user defined tunes on the fly! There are 30 individual tables are available for modification in each of the 4 tuning slots. DSP switching is finally here for the Duramax!

  • 4 positions for on the fly tune changes
  • LED function indicator light
  • OBD2 pass through cable so you can run your digital gauges as well as switch
  • A must have for anyone interested in DSP5 tuning!
  • Quick and easy install
  • *Includes: switch, dial, OBD2 pass through cable, tune indicator sticker, and allen key.

Reviews

Submit a question

  • My tuner said he uploaded 4 tunes through efi live for a switch for my 18 Colorado with the lwn , is this just a plug and play deal?

    Gavin Dunse | 10/7/2025

    Yes, it is.

  • Hi I currently bought an 04 duramax with this tuner installed and wasnt told which numbers do what would yall be able to tell me?

    Garrett Rorison | 8/3/2020

    The tuning levels would vary depending on the tuner. Here is Duramax tuners levels.

    • Optimized Stock - Power delivery smoother than stock with near stock output -Refined timing tables for lower EGTs and higher efficiency
    • Heavy Tow Tune - 60rwhp over stock- Refined timing tables for lower EGTs- Throttle pedal revised for simplified low speed trailer maneuvering- Built for towing loads from 8000lbs to gross vehicle weight
    • Light Tow Tune - 80rwhp over stock -Refined timing tables for lower EGTs -Throttle pedal revised for simplified low speed trailer maneuvering -Built for towing loads under 8000lbs
    • Sport Econ - 100rwhp over stock -Best balance of power reliability and efficiency for unloaded daily driving -Low smoke output -Throttle sensitivity increased for less throttle input, quicker shifting and less average RPM in daily driving situations
    • Stock Trans Race Tune - 130rwhp over stock Maximum horsepower tune for stock transmission- If abused, has the potential to shorten the life of your stock transmission Typically will run mid 14's near 93 MPH on a truck setup for drag racing

  • Do you need a tuner also to use this switch?

    Jeff | 5/16/2020

    yes, this switch works in conjunction with EFI tuning.

May We Recommend

longhorn-knurled-dsp5-custom-switch-knobs

longhorn-200960