About AjPerformance
AjPerformance is a vehicle-software workshop in Viersen. It writes ECU and TCU calibrations from real measured data rather than standard files, covering engine and gearbox software together, and also offers a file service. The workshop handles diagnosis, motorsport and export deactivations, and track-car or full-conversion projects.
Services and facilities
Servicing and repairs
- Diagnostics
Specialist engineering
- Electronics and standalone specialist
- Transmission specialist
Vehicle modification and tuning
- ECU remapping
Motorsport
- Track and race preparation
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