About our family business
Welcome to SW Remapping and Diagnostic in Malmesbury. Driven by a lifelong passion for cars, we are an independent, family-run team committed to keeping our customers happy through dependable vehicle tuning and diagnostic solutions.
Born from a genuine love for cars
SW Remapping and Diagnostic started with a simple motivation: we love cars. From high-precision ECU remapping to expert EGR and DPF solutions, we treat every vehicle with the care, precision, and passion it deserves. As a local family team, we focus on genuine customer satisfaction over high volume.
We take genuine pride in our work
Unlike impersonal dealerships or large chain garages, we take the time to do things properly. Our family values mean honest advice, clear explanations, and meticulous diagnostics before and after every tune. We take immense pride in every car that rolls out of our workshop.
Our promise: to look after your vehicle
Our business has grown through word-of-mouth recommendations from satisfied drivers across Wiltshire. When you bring your pride and joy to us, our promise is straightforward: to look after it as if it were our own, ensuring reliable performance and absolute peace of mind.
"A fantastic family-run business. They looked after my car with incredible care, sorted the issue quickly, and made a huge difference to performance. Highly recommended!"
Verified local customer