Vehicle Tuning,
Calibration &
Trade Support

“Tim carried out a trans tune on my 2023 Dmax after being recommended to me by a friend. I had previously got an engine tune elsewhere and his trans tune really complimented it. It drives like a whole new vehicle now after his trans tune combined with the engine tune done previously. Very smooth and trans isn't all over the place anymore. Not to mention top notch customer service and honesty. Thanks again.”

“I really highly recommend this. My car was really sluggish and couldn’t pick gears, just jump around when towing my caravan, but after the engine and transmission remap it ran 100% better. Thanks.”

“I got Southwest Tuning Co to remap my 200 Series Cruiser. Tim was very thorough, tidy and very professional whilst working on my vehicle. I would highly recommend Tim on any mechanical repairs you need done.

Once again thank you Tim.”

“Tim recently performed a remap of our Range Rover’s engine and transmission. The improvement of performance and smoothness of transmission is very noticeable indeed.

While Tim was working on the car he noticed that a coolant hose was brittle—and actually broke when touched—possibly saving us a very expensive repair bill.

Tim performed all the work in our driveway and took the time to thoroughly road test the car. Tim really knows his stuff.”

“Contacted Tim to remap my 2025 Isuzu Dmax. Right from the get go, Tim was great to deal with and explained each step along the way.

Remap of both the engine and transmission done and dusted, the difference is amazing, drives like a completely different beast.

Highly recommend Tim and Southwest Tuning Co.”

“I always thought my Range Rover was pretty good out of the box, but after having it remapped by South West Tuning Co, it’s honestly a different animal. It’s way more responsive, the torque is incredible, and getting that kind of improvement with better fuel economy is amazing!”

“The amazing Tim remapped our GWM Cannon, great results noticed straight away, no lag, smooth transmission, exceptional pull. Really evident when towing the caravan down south, a few inclines to deal with, never missed a beat. If you want to get the best our of your chariot, give Tim a call, you won't be disappointed.”

“After being disappointed with how the transmission on our MU-X shifted while towing we got in contact with Tim and we can’t thank him enough. He listened to what we wanted out of our MU-X while towing our caravan. Our MU-X not only shifts much nicer between gears, it is also keeping cooler. If you need anything done to your engine or transmission Tim is the man to see. Thanks Southwest Tuning Co.”

“Tim did a terrific job remapping my Range Rover transmission. Much smoother and more torque now. Highly recommended, thanks Tim :)”