


MORE torque
MORE power
BETTER economy
Ultimate Diesel Tuning – Redefining Diesel Performance
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.

This Is One Immaculate 79 Series Landcruiser
The owner was super underwhelmed with the standard torque output that his Cruiser had, so he came to us for a lot more power and torque to help with his towing, as well as an improvement in driveability.
Mitsubishi Triton MR 2021
We had a BRAND NEW Mitsubishi Triton MR, 2021 model in for some work. The Triton already had a fair bit of other aesthetic work done to the outside of it – including an awesome-looking aftermarket
Q&A About Tuning Common Rail Diesels
What exactly is a custom dyno tune? & how long does it take? At Ultimate Diesel Tuning we are able to customise the data in your factory ECU, controlling all of the engine’s parameters such as boost, fuel injection, torque limiters and much more. This allows complete customisation of the vehicle’s standard/factory ECU (Engine Control […]
What Is The Process For Tuning A Turbo Diesel Engine?
Each vehicle is individually custom dyno-tuned via our tuners/engineers, on one of our in-house dynos. This calibration is customised with a lot of factors considered, including the age/condition of the engine; what the vehicle is used for (ie. city driving, highway driving, 4x4ing, towing etc.); & how the client wants his/her car tuned (what the […]
Is Custom Dyno Tuning Better Than Installing A “Chip” Into The ECU?
With mostly well-known rail pressure/untunable “chips” (that are unfortunately very common in the diesel market), generally what happens is that the chip is plugged into your fuel rail pressure sensor circuit, which interferes with the fuel pressure signal to give a false reading to the ECU, to fool it into thinking that the engine has […]
Will A Custom Dyno Tune Affect My New Car Warranty?
Under the Consumer Law, a dealership or manufacture cannot simply “void” the warranty of a vehicle. They can REFUSE warranty – HOWEVER, this can only be done if, via evidence, they can PROVE that the custom dyno tune/modifications were the cause of the problem. For your peace of mind, we also provide our own UDT […]
Does Good Quality Fuel Avoid Engine Soot Build Up?
I’ve heard that if you use good quality fuel, then your engine won’t develop soot build-up. Is this true? That is incorrect! ALL engines that have an EGR valve WILL develop a build-up of soot (carbon). Although continuous use of diesel additives/conditioners or using very high-quality diesel fuel can lessen the effect of soot build-up, […]
Get Your Fuel Economy & Performance Back!
Has your diesel engine done over 50,000ks? It is heavy on fuel? Does it feel sluggish & is it blowing excessive black smoke? Do you want to get your economy, performance & driveability back to how it was when it was new? Did you know that an Ultimate Diesel Tuning on-car chemical soot clean will […]
Clutches & Custom Dyno Tuning!
Is a clutch upgrade required if a custom dyno tune is carried out? Short answer: NO, not for most vehicles, but for some it’s a strong YES! A clutch is a consumable item that isn’t going to last forever. Much like brake pads do, it will wear down over time & require replacing or upgrading. […]
Reduce the Shock
Upgraded suspension Vehicle manufacturers are bringing out their independent front suspension (IFS) four-wheel drives with so little ground clearance. A little more would be great. As a standard vehicle will bottom out in the ruts even on an easy track to popular family beach and camping spots. This is something than can easily be solved […]
Cleaner Cooler Air
Advantages of Snorkel A snorkel, often referred to as a raised air intake, when fitted to your four-wheel drive moves the engines air intake from your airbox under the bonnet, to roof height. This has many advantages as described below: Less chance of water entering the engine when crossing rivers. Access to cooler cleaner air. […]
How Essential Is An Oil Catch Can?
Do I need an oil catch can? Oil catch cans are highly recommended for all direct injection engines. This is due to the small amount of blow-by that is present in a factory engine. This excess crank case pressure has been bled past the piston and the piston rings and into the crank case during […]
Stay Cool This Summer!
Intercooler upgrades An intercooler is an intake charge cooling device that is used on most turbo charged diesel engines. An intercooler cools the air compressed by the turbo, reducing its temperature and thereby increasing the density of the air supplied to the engine. There are two main types of intercoolers that are available. They are […]
Unlock your engine’s hidden potential!
Unlocking your engine’s hidden potential with remapping.
EGR – The Ugly Truth!!!!
*Warning… Graphic Content will shock Diesel vehicle owners!*
The Ultimate Choice For Your Vehicle
CUSTOMER REVIEWS
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- Darren Woolage
James and the team at Ultimate Diesel Tuning at Geebung are awesome, i recently had my N80 Hilux in for the Ultimate Torque pack, remap and Torque converter lock up kit on the transmission. 48% more power and 45% more torque make it so much nicer to drive. So much better response on the accelerator and no more lag. Makes going up hills a breeze and holds its power and wants to keep going and loves it. I drove it down from Townsville and left it with James and they were happy to look after it for a couple of weeks because i couldn’t get back straight away. When i flew back in they had it ready early on the Friday for me. I then drove it back to Townsville some 1300km and gave it a workout on the way and still saved about 1.5L/100km then i did on the way down I can’t wait to Tow my Caravan. Great Friendly service and a professional job. Thanks Darren
7/01/2021Warren ParrishAfter recently having my Ranger PX11 engine flushed, tuned, new larger inter cooler and catch can installed for caravan towing I was presented with a copy of the dyno runs both before and after. To be completely honest the gains made didn’t really click with me until I drove home. Very impressive it’s improved drivability out of sight. Highly recommend the work these guys do.
6/03/2021 - Elvis Pampling
Had my 2018 rugged x at the geebung shop for a complete dyno tune and soot clean complete with a catch can and i can say the performance is incredible i totally recommend the guys and the team if u need your 4wd professionally tuned i will be definitely going back in the near future to get more work done
10/20/2020 - Daniel Colman
Highly recommended the guys at UDT Geebung rob and the team worked wonders on our 2011 ford territory way better torque transfer which made gear shifts a lot smoother they basically removed the turbo lag so over taking is a breeze now and the fuel economy blew my mind I did a test on the way there reset the trip computer and avg fuel economy was 8.9 L/100km after the team worked there magic on the drive home the same route which was a 1.5hrs drive the car only slipped away at 6.6L/100km could be believe it I was hoping to see a little saving like low 8s or high 7s but mid 6s is amazing can’t wait to hook the camper up see how the towing difference is thanks guys couldn’t have asked for a better result.
7/30/2020Nick JordanGold Coast shop- I had the ‘chemical soot clean’ done to my LC200 due to having 200,000 km. I only had the budget to do this process or a tune. I opted for the clean for engine longevity that they claim, and due to claiming better fuel economy and power.
7/25/2020
Unfortunately no change in power or fuel economy whatsoever.
Good friendly customer service though. But a lot of $$ for unseen results. I think if UDT claim better fuel economy and power from their soot clean method I think they should back it up by showing you the specs before and after which they don’t.