BMW Remapping & Tuning Specialists

BMW’s modern platforms are not generic. The N57 and B57 straight-six diesels, the B58 petrol six and the B47/B48 fours each behave differently under load, and the ZF8 automatic behind them has its own torque limiters that will quietly undo an engine map if they are left alone. Tuning a BMW properly means knowing all of that, not buying a file by engine code.

Since June 2020, BMW has also encrypted the ECUs on G-series cars. Most local remappers cannot read or write them at all, and those who can usually post your ECU away to a third party for days. We bench-unlock MG1 and MD1 units in-house, on the same visit — see is my BMW locked? to check yours.

And because our dyno drives all four wheels, xDrive cars are measured properly. A single-roller rig cannot load an xDrive BMW safely or read it accurately.

If your BMW was built after June 2020, its ECU is almost certainly encrypted. That covers most G20, G30, G05 and G01 cars and it is the reason a lot of owners are told their car "can’t be tuned". It can — the ECU has to be removed and unlocked on a bench first.

We do that here, on our own bench, during the same appointment. There is no posting your ECU to a third party and waiting days to get the car back on the road. The unlock adds no extra time to the booking, and it is a one-off — future maps do not need it again.

Check whether yours is affected on is my BMW locked?, or see the ECUs we can unlock.