“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.”
Donnybrook vehicle tuning · WA-wide workshop support
ECU & TCU TUNING.
PERFORMANCE. DRIVEABILITY.
Vehicle OwnersECU remapping and TCU / transmission tuning from our Donnybrook workshop, servicing Bunbury and South West WA for diesel 4WD, towing and performance applications.
Workshops / TradeProfessional tuning, calibration and file support for workshops throughout Western Australia.
Tuning & Workshop Support
For Vehicle Owners
I want my vehicle tuned
Local ECU and transmission tuning from Donnybrook for diesel 4WD, towing and performance vehicles from Bunbury and across South West WA.
View vehicle services For Workshops & TradeAdd ECU and TCU Tuning to Your Workshop
Professional tuning and ECU calibration support, tools and file services for workshops throughout Western Australia.
Explore workshop tool and file optionsConstruction or civil machinery enquiry? View machinery ECU services
Donnybrook WorkshopVehicle tuning for Bunbury and South West WA
Vehicle FocusedCalibration matched to condition and use
Trade ReadyTooling, portal access and workflow support
Platform Support
Vehicle & Equipment Platforms
Support across passenger vehicles, 4WDs, commercial trucks and civil/construction equipment. Availability varies by model, ECU/TCU and software version — contact us to confirm your application.
Cars & 4WD
Trucks & Commercial
Isuzu Trucks
Hino
Fuso
Iveco
MAN
Scania
Volvo Trucks
Mercedes-Benz Trucks
UD Trucks
Kenworth
Mack
Western StarCivil & Construction
Caterpillar
Komatsu
Hitachi Construction MachineryVolvo Construction Equipment
JCB
John DeereManufacturer marks identify potential vehicle and equipment applications only. Their display does not indicate manufacturer affiliation, authorisation, endorsement or partnership.
Customer Feedback
What the difference feels like from the driver’s seat.
01/07
“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.”
“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 :)”
Customer reviews supplied by South West Tuning Co.
From the workshop
Latest News & Technical Updates
ECU and TCU calibration news, tuning-tool developments, workshop support, vehicle applications and South West Tuning Co. business updates.
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