What we do


 As a Licenced Repairer, we employ the latest automotive technology, including a chassis Dyno, and are equipped to handle all major and minor auto repair services on foreign and domestic vehicles. From Log Book servicing to complete diagnostic services and repairs our experienced and certified mechanics will take total care of your vehicle. 


 We can help you determine which aftermarket 4WD accessories you need to eliminate drawbacks of the factory package. Create the ultimate work truck or a wild off-road monster - everything is possible if you have the right parts and accessories.We can also supply and fit turbochargers and other performance mods to gain more power and economy for your vehicle.  


 We supply and fit exhaust and tuning packages for most 4WD's. Performance ECU Remapping is available for a large range of 4WDs and cars. By modifying your Engine Control Unit (ECU) you will gain more horse power, torque & gains in economy than any other performance modification you can do. Turbo diesel vehicles can expect gains of 20% which varies depending on the vehicle.  And with a Turbo Back Exhaust we can experience additional gains.  

Contact Us

Better yet, see us in person!

We love our customers, so feel free to visit during normal business hours.

South West Automotive

11 Inverness Ave Dunsborough WA 6281

(08) 9756 7479 / sales@southwestauto.com.au


Monday - Friday: 8am - 5pm

Saturday: By appointment

Sunday: Closed

Send us an email

customer testimonials

Rod Leeder - Cape Formwork

"The difference before and after is amazing. The cruiser is much more fun to drive and overtaking is effortless, not to mention better on fuel consumption. The Dyno results speak for themselves!"  ( VDJ79R Land Cruiser) 

Ian Reid - Ian Reid Builders

"It's like awakening a sleeping giant! The first drive was every bit as exciting as driving my Cobra after you supercharged it. It is so much more responsive - I only use a fraction of the accelerator pedal in comparison to how it was before. SIMPLY FANTASTIC!!" (Ford F250) 

Jarrad Craven - LG Craven & Sons

"I took my 200 Series Land Cruiser in to get it tuned by South West Auto in Dunsborough as I wanted to increase its performance and efficiency. When I got the car back, it was like driving a different vehicle – very smooth, quick to take off and the fuel efficiency so far is noticeably better. I would recommend this to anyone considering a custom tune." 

Ben Clegg - Valued Customer

"A massive thank you to the guys at South West Auto for the ECU remap! My Nissan Patrol has never run so good - the new increased power and fuel economy is unbelievable. I would recommend this to anyone in a heart beat!" 

Dr Mostyn Hamdorf - Dunsborough Medical Centre

 "After taking delivery of a 2012 76 series Landcruiser I was keen to improve the performance. I discussed my plans with South West Automotive and beyond suspension upgrades we embarked on improving the performance at the rear wheels. After 3” exhaust upgrade, HPD intercooler and a Dominator Series 1 chip the performance went from 108 HP to 220.8HP and the torque was doubled. Fuel consumption was 13.9l/100km but performance was marred embarrassing amounts of sooty exhaust under acceleration. The onset power under acceleration was brutal but seemed to lack torque at low rpm. The chip was recently removed and South West Auto's remapped the engine management system and the changes have been remarkable.
Output at the rear wheels 241.5 HP! Low down torque has doubled and the torque curve has improved across the operating range. Fuel economy has improved from13.9l/100km to 11.5l/100km! On the road, there is less fuel injected rattle and the vehicle is easier to drive with smooth onset of power and better low down torque. I would strongly recommend you talk to South West Automotive if you wish to improve performance and fuel economy. You won’t regret it." 

James Cross - Valued Customer

 "I'm driving a 2013 Passat turbo diesel and the overall servicing is cheaper and more detailed then the local VW dealer. Add to that, the car had an upgraded chip previously installed by SW automotive and has power to burn but can also travel 1300 kms on a tank over long distances. Cant fault the overall service."