PRECISION
ECU & TCU
CALIBRATION

Gelashvili Performance (GEP) has been in the tuning industry since 2007, delivering professional ECU calibration solutions to customers worldwide. With 19 years of experience, we have worked with clients across the USA, Canada, Australia, Europe, and many other regions, providing reliable and results-driven tuning services.

Our work covers everything from 100 WHP street applications to 1500+ WHP high-performance builds, supporting both daily-driven vehicles and heavily modified race cars.

At the core of every project is precise engine management calibration. The most important part of any build is ensuring the engine operates correctly under all conditions — from idle to full load at high RPM. This is where our experience makes the difference.

GEP owner George Gelashvili has spent nearly two decades developing calibration strategies for a wide range of platforms. His work is backed by real-world results, extensive data analysis, and collaboration with performance shops and race teams around the world. The focus is always the same: maximum performance with long-term reliability.

We provide custom ECU tuning services for both individual customers and professional shops, with a strong emphasis on data logging, diagnostics, and continuous refinement. Every calibration is tailored to the specific vehicle setup — no generic files, no shortcuts.

No matter where you are located, our remote tuning process allows us to work on your vehicle efficiently, as long as you have access to a laptop and internet connection. We guide you through every step to ensure a smooth and effective tuning experience.

If your current tune isn’t delivering the results you expect, or you’re building a setup that demands precision, GEP offers the expertise and support needed to achieve safe, consistent, and measurable performance gains.