Custom
tuning
Personalized calibration built around your engine, transmission, modifications, and driving goals.
Get a quote →
Custom tuning for maximum performance
01More powerResponsive power you can use
02More torqueBuilt for towing and work
03Better mileageSmarter everyday performance
04DependableMatched to your exact setup
Texas-built diesel performance
Built around your truck.
Not a generic file.
Whether your truck earns its keep pulling a trailer, lives on the highway, or is built to turn heads, TWZ starts with your engine, modifications, and goals. The result is a tune designed around the way you actually drive.
Tell us about your build →What we do
Power with
a purpose.
Custom
Tow & work
tunes
Strong, controlled torque for loaded trailers, long grades, job sites, and everyday dependability.
Get a quote →Performance
builds
Sharper response and stronger acceleration for owners who want their diesel to feel fully awake.
Get a quote →Diagnostics
& support
Clear answers and experienced support to help identify problems and keep your build working right.
Talk to TWZ →Straightforward from start to finish
How it works.
- 01
Tell us about your truck
Send the year, make, model, engine, transmission, current modifications, and what you want it to do better.
- 02
We build your plan
We recommend a tuning path that fits your setup and makes sense for your goals.
- 03
Put the power to work
Follow the install steps and enjoy a truck that works harder, responds better, and feels like yours.
Let's build something better
Ready to wake up
your diesel?
Send your truck details and goals. We’ll get back to you with the right next step.
Sales: sales@twztuning.com