Diesel Vehicle Performance Enhancement Specialists

more torque, more power, improved fuel economy






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 both:  Geebung in Brisbane, Arundel in Gold Coast & Dandenong in Melbourne.






  • Wayne Cotton Avatar
    Wayne Cotton

    I had my 08 Jeep jku wrangler tuned and pre fuel filter and catch can installed by the Arundel workshop.

    They went above and beyond to get every request I asked of them into my Jeep and at the quoted price and after the tune my heavy Jeep with 250k km feels like a completely new car I was astonished!!


    Travis A Avatar
    Travis A

    I handed my brand new 2019 Wildtrack over to UDT for some aesthetic upgrades. Prompt service and replies from the team regarding the changes i wanted. Couldn't be happy with the end result.

    Will R Avatar
    Will R

    Fantastic service, Michael has been nothing but accommodating with all my silly questions. His customer service is top notch. Will definitely recommend ultimate diesel tuning Goldcoast to all my friends.

  • Adam Crew Avatar
    Adam Crew

    2010 Ford Ranger tuned, desoot and intercooler done a month ago. Have done about 2000km since and so far so good. the car is an absolute pleasure to drive now. the only negative is that the intercooler kit you supplied has cheap and nasty hose clamps. you could do better with something decent like t clamps. I have had my intercooler hose come off 2 times already so I will now be replacing all the hose clamps. given the cost of the kit it's irritating to now have to change part of it. Only a small issue but goes straight to reliability.

    Lance Wells Avatar
    Lance Wells

    Very happy with the customer service from Ultimate Diesel. My vehicle was in for a custom tuning and there were a few issues with my Turbo. The technician went out of his way and spent a few extra hours on it to try and give it the best possible outcome. Have rebooked in another service to recheck everything again at their request which was above and beyond.

    Gary Barber Avatar
    Gary Barber

    "Couldn't be happier with the results or the service I received. The Tune has improved my PX1 Ranger above all expectations Cheers"

  • Darren Sice Avatar
    Darren Sice

    I had our hilux done over a year ago and it is still going great

    Todd Cloutt Avatar
    Todd Cloutt

    The initial research to have my 200 Series tuned with chip and exhaust was pretty extensive, I didnt want to just throw money away and I wanted it done correctly.
    I eventually decided to go with Ultimate Diesel Tuning and so glad I did. The team there were great to deal with and they discussed with me what to expect in relation to improvements to the vehicle.
    I was initially a bit skeptical but after driving it for the first time after the work I was shocked. It feels like a completely different car. The power is instant there is no lag and is significantly more dominant than before the tune.
    I havent had a long enough trip to be precise on fuel consumption but it is definitely reduced compared to previous.
    The team walked me through during process and kept me up to date. I had an oil leak which I couldnt find which was annoying they found it and fixed this for me while they were doing the tune.
    I would recommend Ultimate to anyone who is looking for a good reliable tune any day, I also intend on returning for all works I cannot do myself.
    Very Happy

    Marty James Avatar
    Marty James

    Very easy to deal with, great team.
    I’ve gained power, torque and I’ve almost doubled my fuel range.

    N80 was previously sluggish. Now responds instantly and drives like a $60k turbo diesel should. Was getting 12Litres per 100k, now get an avg of 6.7 litres per 100k. Have had the tune for 4 months and done just over 6000km with it on. Absolutely worth every cent.

  • Brad Archibald Avatar
    Brad Archibald

    Had my Dmax tuned at Geebung workshop & couldn’t be happier with the results. Great work lads!!

    Brendan Rose Avatar
    Brendan Rose

    Got a tune from another business but was bad on take off and towing . Got talking to the team in the end got another 5kws and 100nm very happy with the job and price

    Mark Fischer Avatar
    Mark Fischer

    the boys were easy to talk to very open about any questions I had and good to talk to the change in my 76 is unbelievable from just the clutch and tune I can't imagine what a full upgrade would do very happy with the boys in brizzy

  • Troy Whyte Avatar
    Troy Whyte

    Staff at the Geebung store are awesome and always willing to go that extra mile. Keep up the good work lads and i couldn't be happier with the power figures after your tuned on my 4wd.

    simon perkins Avatar
    simon perkins

    The guys did a fantastic job and fit me in last minute. I wasn’t expecting major results after just a remap but was blown away after driving my vehicle again. Great work!!

    Ashley Pickering Avatar
    Ashley Pickering

    Wasn't the cheapest quote I had for a tune, but they had the best feedback after a lot of searching, so took the plunge and booked in. Very happy with the results, not only goes a lot better, but smoother as well. Almost like upgrading to a new car at a fraction of the cost.