Fully mobile engine tuning based in West Wales, covering mid, north and surround areas.

Specialist Remapping for cars, vans, trucks and tractors.

Select your vehicle

Improve the power and fuel economy of your car, can, truck or tractor with an ECU Remap.

Geewiz Guarantee

Day money back guarantee

Lifetime software warranty

Unlocking vehicle potential

Our Services

Here at GeeWiz we offer a wide range of services, specialising in vehicle diagnostics for all major models and ECU Remapping for cars, vans, trucks and tractors.



Specialists in car diagnostics. We're able to carry out checks and repairs for all makes and models and offer a fast, efficient service



ECU remapping for all major brand cars, vans, trucks and tractors, using the latest ECU programming techniques and software available.



Specialists in VW, Skoda, Audi and Seat VAG diagnostics

Get in touch

Interested in our services? Get in touch with us via the form below and we'll get back to you as soon as possible!

0788 8676 354
Opening Hours
Monday - Friday: 9am - 5pm Saturday: 8am - 12pm Sunday: closed