Mobile ECU Remapping & Gearbox Tuning in North Somerset & South Wales


MTechTuning provides professional mobile ECU remapping, gearbox tuning and vehicle performance services across North Somerset, South Wales and the surrounding areas. We specialise in BMW vehicles but also cover a wide range of other manufacturers, including Audi, VW and performance petrol and diesel models, delivering reliable and safe tuning using dealer-level diagnostics.


At MTechTuning, we are your trusted partner in maximising your vehicle’s performance and efficiency through professional remapping. Based in North Somerset and South Wales, and covering areas including Bristol, Weston-super-Mare, Chepstow, Cardiff and Newport, we offer a wide range of specialised services including mobile remapping, ECU Remapping, Gearbox Remapping, diagnostic health checks and performance solutions such as DPF, EGR, AdBlue and decat options.


We also provide a wide range of additional performance options, which you can view via our services pages. We work closely with NeosBeemers, making us a go-to destination for BMW performance hardware installations and exhaust modifications.


Serving North Somerset and South Wales, our experienced team is dedicated to unlocking the true potential of your vehicle while maintaining reliability, drivability and long-term engine safety, ensuring an improved and more responsive driving experience every time you get behind the wheel.

Mobile Remapping

We can come to you wherever you are in North Somerset or South Wales for ultimate performance and convenience!

ECU and Gearbox Remaps

We are able to remap your car to provide better performance and also economy, this will increase performance and save you money at the pump.

Additional Options

We offer a range of comprehensive services and solutions to make your vehicle unique & increase the performance or better the reliability.

January 2, 2026
Engine Tune: Stock - 105 hp / 250 nm Stage 1 - 140 hp / 320 nm ( +35 hp +70 nm ) Ad ons: -Speed limiter off Advanced dealer level diagnostic included 🏁 We are fully mobile meaning we will travel to your vehicle at home or work free of charge! 🏡 Get in touch now or visit our website for INSTANT BHP CHECKER Link in bio. 📲 0% finance options available
January 2, 2026
Engine Tune: Stock - 367 hp / 520 nm Stage 1 - 420 hp / 620 nm ( +53 hp +100 nm ) Ad ons: -Speed limiter off Advanced dealer level diagnostic included 🏁 We are fully mobile meaning we will travel to your vehicle at home or work free of charge! 🏡 Get in touch now or visit our website for INSTANT BHP CHECKER Link in bio. 📲 0% finance options available
BMW ZF6HP OBD gearbox tuning for faster, smoother shifts with improved torque handling, reduced lag.
December 24, 2025
ZF 6HP gearbox tuning for BMW – faster, smoother shifts, improved torque handling and reduced lag. Safe OBD tuning by BMW and ZF specialists. Book today now.

Pay just 25% of your bill today

NO FEE NO INTEREST NO CATCH

£200 minimum spend

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