Unlock your vehicle's true potential
Welcome to SW Remapping and Diagnostic in the south west. We provide expert ECU tuning, diagnostics, and emissions solutions tailored to give your car better performance and efficiency.
Our expert services
We deliver dependable automotive solutions tailored to your vehicle. From software recalibration to in-depth fault analysis, our family-run team is dedicated to keeping your vehicle running smoothly.
ECU remapping
Custom engine software tuning to boost power, enhance throttle response, and optimise fuel economy.
Vehicle diagnostics
Advanced fault-finding and sensor checks to accurately pinpoint warning lights and running issues.
DPF solutions
Professional diagnostic troubleshooting and software rectification for blocked or faulty diesel particulate filters.
EGR solutions
Specialist services for exhaust gas recirculation issues, restoring smooth idle and overall performance.
Precision tuning for every drive
Every vehicle is unique, and our tailored maps ensure you achieve the best blend of driveability, torque, and efficiency. Whether you need diagnostic troubleshooting or performance improvements, we are ready to assist.
Sarah T.
"SW Remapping and Diagnostic sorted my car out in no time. The extra power and responsiveness are unbelievable, and they were brilliant to deal with."
James P.
"A genuinely friendly family team. They quickly diagnosed an engine fault other garages missed and resolved my DPF issue seamlessly."
"Excellent service right here in Malmesbury. My fuel economy has improved significantly since having the stage 1 remap completed."
Mark D.
Have questions about tuning your car?
From the benefits of custom remapping to understanding diagnostic error codes, we are happy to guide you through every detail before we start working on your vehicle.
Get in touch
Our location
SW Remapping and Diagnostic
Malmesbury, Wiltshire
United Kingdom
Phone: 07510 234719
Email: carlhirst696@gmail.com