Smart cars are made for city life. They are compact, efficient, and easy to drive. At Celtic Tuning, we improve them further with our Smart ECU remapping and chip tuning services. By adjusting the software in your ECU, we unlock extra performance that changes how your Smart feels on the road.

Our tuning improves throttle response, provides smoother power, and gives you a bit more pull, making daily driving more enjoyable. If you have a diesel model, you might also see better fuel economy, allowing you to travel further for less.

We support the full Smart lineup, including the iconic Fortwo (W450, W451, C453), the practical Forfour, and unique models like the Roadster and Crossblade. Even the early City models gain from our upgrades, showing that size doesn’t restrict performance.

All our remaps are developed and tested in-house on our advanced 4WD Dynocom rolling roads. With locations in Newquay, Cornwall, and Derby, we make sure every calibration meets high standards of accuracy and reliability.

For your peace of mind, each remap comes with a mechanical breakdown warranty and our 14-day money-back guarantee.