At Celtic Tuning, we offer specialized ECU remapping and chip tuning services for diesel engines made by Great Wall. Each remap is created in-house, which allows us to provide customized software that improves performance, torque, and efficiency while ensuring great reliability.

Our Great Wall ECU remaps give you more pulling power, quicker throttle response, and smoother drivability. Many owners experience better fuel economy, making our remaps suitable for both work and daily driving.

We support the Great Wall H6 SUV and the Great Wall Steed pickup, covering the brand's most popular diesel vehicles. Whether you want lower running costs, better towing capability, or improved overall driving experience, our software offers a reliable solution.

All of our software meets high standards, so you can trust that your vehicle uses top-notch tuning technology.

For your peace of mind, we also include a mechanical breakdown warranty and a 14-day money-back guarantee.