The Texas Speed x DiabloSport DOD Delete Programmer Kit for 2019 to 2021 GM gas trucks is the plug-and-play tuning solution that finishes a mechanical Active Fuel Management (DOD) delete on the newer Silverado and Sierra. Once a non-DOD camshaft and standard lifters are installed, this programmer disables the cylinder deactivation in the ECM so the truck runs as a full-time V8 while keeping factory-like drivability.
Texas Speed states the programmer only disables AFM/DOD and does not support custom tuning or aftermarket camshafts. There is an important compatibility limit: if the 12th character of the truck's VIN is 5 or higher, the programmer will not work with that vehicle, so check the VIN before ordering. Disabling DOD helps prevent the lifter failures, oil consumption and cylinder deactivation issues associated with AFM.
Specifications
- Function: Disables AFM/DOD for full-time V8 operation
- Application: 2019 to 2021 GM gas trucks only
- VIN restriction: Will not work if the 12th character of the VIN is 5 or higher
- Camshaft requirement: Stock-style non-DOD camshaft only; not for aftermarket cams
- Tuning: Plug-and-play, no tuning experience needed; does not support custom tuning
- Intended use: Paired with a DOD delete hardware kit
- Part number: TSP-TS-3090 (Texas Speed x DiabloSport TS-3090)
Note: Verify VIN compatibility before purchasing: the programmer will not work if the 12th character of the VIN is 5 or higher. This programmer is intended for DOD delete hardware and stock-style camshaft applications only.
Vehicle Applications
Texas Speed lists this programmer for 2019 to 2021 GM gas trucks. The list below is narrowed to those model years.
GMC Sierra 1500
- 2019 GMC Sierra 1500
- 2020 GMC Sierra 1500
- 2021 GMC Sierra 1500
GMC Sierra 2500
- 2020 GMC Sierra 2500
- 2021 GMC Sierra 2500
Chevrolet Silverado 1500
- 2019 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 1500
Chevrolet Silverado 2500
- 2020 Chevrolet Silverado 2500
- 2021 Chevrolet Silverado 2500
Vehicle applications reflect the fitment published by Texas Speed & Performance for this part number. Confirm your engine and cylinder head configuration before ordering.
Race Use Only. This product is intended for competition use on vehicles that are never operated on public roads. It is not legal for sale or use on pollution-controlled motor vehicles, and it is not CARB exempt. Installing or using this part on a vehicle driven on public roads may violate the federal Clean Air Act and state emissions laws.
FAQ
What trucks does the Texas Speed TS-3090 DOD Delete Programmer fit?
Texas Speed lists it for 2019 to 2021 GM gas trucks, such as the Chevrolet Silverado and GMC Sierra, provided the 12th character of the VIN is 4 or lower. Trucks whose VIN has a 5 or higher in that position are not supported.
How do I check if my truck is compatible?
Read the 12th character of the VIN. Texas Speed states the programmer will not work if that character is 5 or higher. Verify this before purchasing, since the device is tied to the vehicle.
Can I use this programmer with a performance camshaft?
No. The TS-3090 is designed only for stock-style non-DOD camshaft deletes. It does not support custom tuning or aftermarket camshafts, which would require a full custom tune.
Do I need DOD delete hardware too?
Yes. The programmer is intended to be paired with a DOD delete hardware kit (non-DOD camshaft, lifters and plugs). It electronically disables AFM but does not replace failed lifters by itself.
What is the difference between the TS-3090 and the TS-3000 programmer?
The TS-3000 covers 2007.5 to 2018 GM trucks and SUVs, 2010 to 2024 Camaro and 2005 to 2014 Hemi vehicles. The TS-3090 is specific to 2019 to 2021 GM gas trucks and carries the VIN 12th character restriction.

