ECU & TCM tuning tools

The Toyota, Ford, Nissan, and more Tuning Experts

With more than 10 years of Toyota ECU reverse engineering, analysis, calibrating, and coding.

15+ Years Experience
Disabled Veteran Owned and Operated

4.9/5 from 20 customer reviews

For your own vehicle

Tuning Kits

Complete phone and laptop kits, vehicle-specific options, and tuning guides.

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For customer vehicles

Pro Tuner Tools

Professional kits, vehicle credits, platform upgrades, and tuning tools.

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Data-driven results

The most widely used Toyota tuning tool ever produced.

Used on over 75,000 cars

Independent testing
Every dyno result is independently tested.
Comprehensive tuning
The most comprehensive tuning solution available worldwide.
- Custom Features
- Custom Code
- Thousands of Calibrations Supported
Free OTS maps
Available on many platforms.
Custom tuning
Individualized tuning available upon request.

Explore results & builds

Used by major manufacturers

Reviews from our customers

What drivers and tuners say

4.9/5 From 20 reviews

Usefull

Mauro Gallo

09/17/2026

Overall, I’m happy with OV Tune and the tuning options available for my 2020 4Runner. My main criticism is that their wording can be confusing, especially when explaining packages, licenses, upgrades, and what’s included. It takes more back-and-forth than it should to understand exactly what you need to purchase and which features you’ll have access to. A simple comparison chart and clearer descriptions would make the buying experience much better.

Calvin Nguyen

09/11/2026

Customer service is Excellent

Robbie Ernst

09/09/2026

Best of the best

Luis Galban 1992

08/31/2026

This company is the real deal. They helped me through the weekend to get my truck dialed in. Easy software, the OTS tune is great exactly what the truck needed.

Jon

08/16/2026