At Celtic Tuning, we offer a full range of BMW ECU remapping and chip tuning services for both petrol and diesel models. Every remap is written in-house and fully developed on a dyno. This allows us to customize performance for your vehicle while providing the best in power, drivability, and reliability.

Our BMW ECU remaps offer several benefits. You can expect sharper throttle response, smoother power delivery, better drivability, and, in many cases, improved fuel efficiency. After years of development and testing, we have tuning solutions available across the entire BMW lineup.

We support everything from the compact 1 Series and 2 Series, including Active Tourer and Gran Coupé variants, to the popular 3 Series and 4 Series in all generations. For executive and luxury models, we cover the 5 Series, 6 Series, 7 Series, and 8 Series, along with the hybrid sports i8.

Our tuning services also extend across the full BMW SUV range, including the X1, X2, X3, and X4, as well as the larger X5, X6, and X7. For sports car enthusiasts, we provide upgrades for the iconic Z3 and Z4 roadsters, including their M variants.

Of course, we also cover the legendary BMW M models across the lineup, from the M2, M3, M4, and M5 to the high-performance M6, M8, X5M, X6M, and X7M. We deliver even greater performance for these already impressive vehicles.

All of our software is fully developed on the dyno and tested on our state-of-the-art 4WD Dynocom rolling roads. We have two 4WD Dynocom dynos at our head office in Newquay, Cornwall, and an additional 4WD Dynocom facility at our Derby branch. This ensures precision, consistency, and excellent results.

For added peace of mind, Celtic Tuning also provides a mechanical breakdown warranty along with a 14-day money-back guarantee.