Redefining Diesel Performance

Diesel vehicle performance enhancement specialists.
More torque, more power, improved fuel economy.

Talk to one of our diesel specialists today.

We are Ultimate Diesel Tuning

Ultimate Diesel Tuning (UDT) is an Australian aftermarket turbo-diesel mechanical performance upgrade & custom dyno tuning company. Our performance centres have three fantastic locations with in-house dynos at: Geebung in Brisbane, Arundel on the Gold Coast & Dandenong in Melbourne.

Customer Feedback

Ben Anderson

13/10/25

Awesome service and communication

Peter Etherton

30/09/25

I decided to have my 2019 Mazda BT50 tuned, after lots of will I, won't I. Spoke to Brad who convinced me it's the way to go. I had a custom tune done for towing my 2.5t van. After the tune I picked up my van and drove back home from Toowoomba to Gladstone, over some hilly country. My rpm has dropped by 700 - 800rpm and fuel economy went down by 3lt per hundred. To say I'm over the moon is an understatement. If you are thinking about having a tune done with these blokes, don't think anymore, just do it. You won't regret it. One very happy customer, Thanks UltimateTuning. 🤙 Peter E

davekk126

24/08/25

Am very happy with the uplift these guys gave the ol Prado 120. They were great to work with from the quoting process all these way through to completion. They also replaced a failed turbo effortlessly. Highly recommended.

Pauly

07/08/25

Top work, Top Guys,
Terence Grimison

01/08/25

Great service from the Gold Coast team with the increase in power and torque for towing and the lock kit installed works great for what was a reasonable price.

Greg Baker

30/07/25

I needed more power and torque for towing caravan. Worked a treat. Made towing so much easier and less fuel. Thanks guys. Much appreciate

Beau Harris

30/07/25

The professionalism of the guy’s at UDT is amazing!! Their work is faultless and their willingness to work in with my arrangements for dropping off and pickup was very appreciated. I would highly recommend them to anyone. The gains that I got on my brand new MU-X are outstanding. It tows completely different and with ease! Thanks so much again guy’s.

gary wilkins

30/07/25

I found the experience great so happy with the results on my M UX
Pete McMillan

30/07/25

Great service easy to deal with and very happy with the results 😀

Geoff Jensen

09/07/25

Had a very good experience with these guys, I'd put an after market air cleaner that disrupted the mixture. They halted the tune allowed me time to remove it and rebook without extra expense. That was very much appreciated, re the tune, I wanted a bit extra for towing, it's achieved that and I believe the fuel economy is slightly improved too. So all in all I RECOMMEND these guys ☺️

Mick Currie

28/06/25

Can’t recommend UDT Gold Coast enough. Amazing service and communication from start to finish. My 2014 200 series performance since its trip to UDT has far exceeded my expectations.

Robert Blaschka (Rob)

27/06/25

I just have to leave a 5 Star Review on UDT Geebung. The whole experience was extremely professional, and enjoyable. These guys know their shit and the boss (Robert) even works on the workshop floor. Best money spent on gearing (tune, exhaust and coolers) my PX3 Ranger up for a lap towing my 3.5 ton off road van. Just can’t keep the smile of my dial. Bloody awesome product and service gentleman. Thanks heaps Ron
Brett Davis

22/05/25

I took my 2025 Isuzu MU-X to Ultimate Diesel Tuning at Arundel and have nothing but praise for these guys. They aren't pushy at all and are extremely helpful. They take the time to talk to you about what type of driving you do, what loads you may carry, whether you tow etc. They are more than happy to answer any questions you may have. Isuzu MU-X's are known for hunting for gears, but after the tune, it's so much better. No gearbox work has been done, but with the extra torque, it just works better. Driving it is great now. Kw up a bit, but a major increase in torque is what counts. It goes extremely well now and as a surprising bonus, is using less fuel. I highly recommend these guys. Such a pleasure to deal with a company with great service and actually deliver what they promise. I couldn't be happier with the outcome, thanks guys.

Shaun Davidge

22/05/25

I dropped the car off. They showed me the workshop ran through my questions and asked me to come back to pick it up later. I had an on-car soot clean and ECU time for a 2019 Prado. I’m very pleased with the results. Drives nicer, better fuel economy when I drive quietly, and better power where I need it if I call on it.

Warren McMahon

02/05/25

Had my Ranger tuned to tow the caravan. Smoother ride, fuel economy is good and overall a better feel when towing. UDT were extremely helpful, knowledgeable and answered all of my many questions and gave fantastic advice on further upgrades which we will certainly do before heading to The Cape. Highly recommended.

Jason Saddler

02/05/25

200 series land cruiser with 110k. Soot clean and efficiency tune, runs great now, about 20% more power and a litre or 2 less per 100. Well organized guys, well worth it. Than you!
Greg Dennis

17/04/25

I recently had a Towing Tune done to my 2012 Nissan GU Patrol. Although I haven't towed with it yet, I have noticed an improvement in fuel consumption, better performance climbing hills and a smoother pickup without any noticeable turbo lag. Very happy with what I am seeing so far and happy with the service I received from UDT.

Family fishing and adventures

09/04/25

Great people great tune Will. Highly recommend ultimate diesel tuning.

Joel coleman

09/04/25

Great service from UDT Gold Coast! Very happy with the results on my ford ranger, very noticeable increase particularly in the midrange where it’s most useful. Team was very helpful and had great communication

Mat Fisher

09/04/25

They delivered what was promised and my car has been running beautifully since! The service was great and everything was explained to me in a way that was understandable. Thanks Ultimate Diesel Tuning!