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 two fantastic locations with in-house dynos at both:  Geebung in Brisbane & Dandenong in Melbourne.


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  • Brendan Wagner Avatar
    Brendan Wagner

    A true custom tune. Will reccomend everyone i know to here from having alot of experience with their competitors these guys are a mile ahead! Wouldnt waste your cash any where else

    30/07/16
    Ian Mcconnell Avatar
    Ian Mcconnell

    Well done to Corey an the team - my 2010 Triton GLX-R now can keep up with the everyday rocket ship ....

    Was @8.9 liters per 100 - now 7.1 per 100kms.

    Run my own business and now will recommend all diesel 4x4's to Ultimate Diesel - great job 🙂

    19/02/16
    Robb Evans Avatar
    Robb Evans

    Had my navara d40 tuned and exhaust done by these guys in Dandenong and love it! These guys know what they are talking about and would recommend them!

    15/01/17
  • Dave Burns Avatar
    Dave Burns

    The Dinosaur (VDJ76) went in for a de-soot, new NPC clutch kit and a remap and dyno.

    A whole new vehicle to drive, better low end response for towing our van and more responsive acceleration.

    Fantastic customer service from start to finish.

    I would have no hesitation in recommending them.

    Thanks Guys!

    18/11/16
    Tanya Stone Avatar
    Tanya Stone

    Thank you for supporting 4x4 Pink Run for breast cancer

    11/07/16
    Shane Mitchell Avatar
    Shane Mitchell

    Had my 79 series landcruiser in for a custom dyno, heavy duty clutch and oil catch can.

    Drove out with double the torque and 40% more power, 90% of the lag is gone and Drew gave great advice on some minor changes I can make to the vehicle to get even better performance.

    I highly recommend ultimate diesel tuning to anyone wanting more performance out of their diesel 4x4. Great service and advice

    18/07/19
  • Brendan Stanford Avatar
    Brendan Stanford

    Awesome tune. Heaps more power and way better to drive now. Got the same torque as a v8 landcruiser

    16/02/16
    Tony Winn Avatar
    Tony Winn

    Had both my 08 Navara STX 2.5 and wifee's Pathfinder 550 V6 done by these guys. Both had 3" exhaust replacements and intercooler on the Nav all done in house. Both go better than I thought any diesel could!!

    Better economy, except maybe when enjoying the torque rush too much, different vehicles to drive in the best way.

    Thanks Brad and the team. 2 very happy customers.

    28/07/16
    Rohan Scorer Avatar
    Rohan Scorer

    Great results from these guys with my hilux! Very impressed with the power. Like a whole new car. Will definitely recommend to my mates!!! Thanks guys

    03/05/17
  • Daniel Collard Avatar
    Daniel Collard

    Best money I've ever spent. My D40 is now effortless to drive and sounds awesome. Highly recommend

    10/08/16
    Alex Mcpherson Avatar
    Alex Mcpherson

    These guys tunes are the goooods!! Definitely recommend them

    30/07/16
    Lindsey Walker Avatar
    Lindsey Walker

    5 star

    Great product, great service, great price 👌🏻

    30/07/19
  • Joel Seemo Avatar
    Joel Seemo

    Awesome customer service, the guys are very thorough and explain everything about the whole tuning process, Got awesome results out of my Triton, great gain in economy and power. Highly recommend!

    06/04/17
    Trent Williams Avatar
    Trent Williams

    The boys did an awesome job with my hilux. Runs awesome. Like a brand new car. I got the tune done and desoot. Thanks heaps lads... lovin it

    22/07/16
    Jim Duncan Avatar
    Jim Duncan

    I was very impressed with the job done on my 2012 Colorado. Lots more power and torque and before the tune fuel economy was 8.1 L per 100km and now it is 6.8L per 100km. Great service and people. I can't recommend them highly enough.

    16/04/16