Located in Farmington, MO

Computer Tuning & Chassis Dyno Services

Plug In. Power Up. Drive Better.

One of the most effective — and often overlooked — ways to increase horsepower, torque, and overall drivability is professional vehicle tuning, also known as ECU reprogramming. This process involves uploading optimized software to your vehicle’s computer to adjust critical control parameters such as fuel mapping, ignition timing, and transmission shift points. The result is improved performance, smoother power delivery, and in many cases, better fuel efficiency — all without invasive mechanical changes.



Most vehicles from the mid-1990s to today are equipped with an onboard diagnostic port located beneath the driver’s side dashboard, allowing direct access to the ECM and TCM. Through this port, revised programming can be safely uploaded — often without even opening the hood. At Holt Auto Body & Performance, we use our in-house Dynocom Dyno alongside advanced tuning software to deliver precise, real-world results. Every tune is designed to maximize power at the safest operating levels, while maintaining excellent drivability and long-term reliability.


First 3 Pulls (min)

$175


Rental Time Thereafter

$100 per hour

*Our Dynocom Dynamometer is rated up to 3,500 Horse Power and 350 Miles per Hour!

Dyno Pulls

Dyno pulls are the perfect way to measure horsepower and torque, give you bragging rights or to help guide your next performance upgrade decision.

Dyno Rental

Chassis Dyno Rental is available to test and tune your vehicle when you need full access to a chassis dyno facility.

Group Dyno

Group Dyno days are exciting and will prove who has the most powerful ride, with plenty of space to safely hangout. You can watch it on the video monitors live and join in on the fun!

Dyno Tuning

Dyno Tuning enables your vehicle to run at its peak. Your car will be tested and adjusted for the safest increase in horsepower, keeping dependability in mind.

Red and black Mustang with the hood open in a garage, being worked on.
Two cars in a garage. One black, hood open; one grey with "HOLT PERFORMANCE" on windshield.
Blue Ford Mustang Shelby GT500 with hood open in a garage, U.S. flag on wall, dyno screen visible.

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