About JO-Performance
JO Performance in Maulburg, in the Lörrach district, offers individually written chiptuning, gearbox optimisation and software fixes, with a focus on BMW. The original ECU file is read and stored, then the map is written on the customer's own file; work can be done in Maulburg or by sending in the control unit.
Services and facilities
Vehicle modification and tuning
- ECU remapping
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