Fort Worth, Texas
Precision Diesel Performance Tuning
Expert custom tuning for Ford Powerstroke, Chevy Duramax, and Ram Cummins. Maximum power. Maximum efficiency. Maximum reliability.
From mild economy tunes to aggressive performance builds, we deliver solutions that match your driving style
Tailored calibration for your specific modifications, driving style, and power goals. Street, tow, and race tunes available.
Injection system diagnostics, CP3 pump upgrades, CP4 to CP3 conversions, and fuel delivery optimization for maximum reliability.
TCM calibration for improved shift points, line pressure, and torque management. Essential for high-power builds.
Advanced diagnostic capabilities to identify issues before tuning. Fuel system, turbo, and injection diagnostics.
Complete performance packages including turbo upgrades, fuel systems, and supporting modifications.
Can't make it to the shop? We offer remote tuning with AutoCal and EFILive devices shipped directly to you.

Meet the Tuner
Born and raised in North Texas with diesel fuel in our veins. Harrison Diesel Services has been wrenching on trucks since day one — turning a lifelong passion into one of DFW's most trusted diesel performance shops.
With over 10 years of hands-on experience across Ford Powerstroke, Chevy Duramax, and Ram Cummins platforms, Mitchell brings a level of precision and platform-specific knowledge that's hard to find. Every tune is built from scratch for your specific truck, your mods, and your goals — never a cookie-cutter file.
10+
Years Experience
2,000+
Trucks Tuned
3
Platforms Mastered
Specialized tuning solutions for all major diesel platforms
6.4L - 6.7L
LMM - LML - L5P
5.9L - 6.7L Common Rail
Pricing varies by year and platform. All tunes include lifetime revisions. We service 2007 and newer on all platforms.
All tunes include: Initial tune + 2 revisions — Economy, Tow, and Performance options
Schedule Your Tune TodayReady to unlock your diesel's potential? Contact us today.
6815 Rendon Bloodworth Rd
Fort Worth, TX 76140