About SRX Performance
A New Standard in UK Performance Tuning
Based in Cardiff, SRX Performance is a specialist ECU remapping and vehicle performance studio dedicated to precision-engineered calibrations. Our work sits at the intersection of engineering, craftsmanship and driver experience.
Integrity First
We only take on work we’re confident we can deliver to the highest standard. Full health checks precede every calibration.
Custom-Built Files
Every map is bespoke to your exact vehicle, fuel, and driving style — never a templated file.
Measured Performance
Real-world logging and data validation ensure our results are honest, repeatable and reliable.
Aftercare Included
Our relationship doesn’t end at handover. Fine-tuning and support are part of the service.