Tuning a modern US truck used to be a nightmare. Costly ECU swaps and not much else to choose from. But not anymore!
Willy’s Workshop has cracked the encryption on 2022+ models, making it now possible to fine-tune your Ram, Silverado or F-Series without replacing the ECU. That means more pulling power, faster, more responsive acceleration, and a smoother drive—all without breaking the bank.
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Willy’s Workshop: Your trusted destination for expert US truck tuning
At Willy’s, we’re pioneers in US truck tuning in Australia, offering a service that’s as simple as it is effective. We’ve cracked the code by overcoming the tough encryption protecting the ECUs of 2022+ models.
Our expert team connects directly to your truck’s ECU, tuning the key settings to crank up torque, smooth out acceleration, and boost fuel efficiency—no need for messy ECU swaps like you get with other workshops.
With Willy’s, your truck will be ready to take on any challenge with improved power, smoother performance, and better overall reliability.
US Truck Tuning – No ECU Swap on 2022+ models:
- Ram 2500 and above
- Silverado 2500 and above
- F250, 350, 450 & 550
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The benefits of a US truck tune
Tuning your US truck isn’t just about adding power. It’s about making it perform smarter where it counts and handle the demands of your day-to-day driving. At Willy’s, we dive into the nitty-gritty of your truck’s ECU, fine-tuning it with precision to unlock a range of performance benefits and more:
Effortless towing power
We increase torque and refine gear shifts so your truck pulls heavier loads effortlessly. Hills, trailers and tough terrain become easier to handle without the engine straining.
Better fuel economy
We fine-tune air-fuel ratios and engine timing to make your truck more efficient. You’ll cover more ground with fewer stops at the pump, saving you money every trip.
Smoother, quicker acceleration
By adjusting throttle response and fuel mapping, we make your truck more responsive off the line. That means quicker takeoffs and smoother gear changes for a more enjoyable drive.
Reliable performance in Australian conditions
US trucks are built for different conditions, so we modify the ECU to optimise performance for Australian heat, challenging landscapes, and heavy-duty hauling. This gives you reliable performance wherever the road takes you.
What sets Willy’s Workshop apart from the rest?
At Willy’s Workshop, we’ve built a reputation for expert diesel mechanics, offering everything from basic repairs to specialised tuning and extensive overhauls. We get it done right, quickly and at a fair price.
Plus, with our multi-mapping capabilities, you can switch between different performance modes to suit your driving needs. For example, an economy mode for fuel savings, a towing mode for extra torque, and a performance mode for maximum power—all accessible at the push of a button.
Our commitment to quality service goes beyond the shop. We’re always ready to assist with any questions you have—whether it’s about your service details or an invoice breakdown. Our goal is to make your experience straightforward, honest and hassle-free from start to finish.
US truck performance specialists
At Willy’s Workshop, we focus on every detail to fine-tune your truck’s power, dial in fuel-efficiency, and boost towing strength.
Trusted & experienced
We’re passionate about truck repairs, tuning and upgrades. With a wealth of experience under our belts, we treat every vehicle like it’s our own, ensuring every service is spot on and done right the first time.
Everything your truck needs, under one roof
From performance upgrades to repairs and ongoing maintenance, we can manage all aspects of your truck’s needs, getting you back on the road faster and running more efficiently.
Advice you can trust
With years of experience, we’re known for honest, reliable advice and expert care. So your truck is in great hands every step of the way.
Turn every drive into a performance experience.
Book your performance tune today!
Testimonials
What our customers have to say
nick S.
22:46 30 Mar 26
Spiteful or just negligent? Do not engage. I sent my vehicle to these guys for an engine swap, was quoted 3 weeks. 19 weeks of chasing them about it with no attempt made by Willy’s to communicate delays and I finally cracked and said give me my vehicle back. Now they won’t return my deposit and the state they returned my vehicle in is laughable. At every turn they have been dishonest and lazy. Never have I ever had a worse experience with a mechanic. Court proceedings to follow but do yourself a favour and go elsewhere.
Frostythesnowman
08:28 30 Mar 26
Would avoid them like the plague for a guy on facebook to not to have his car for 6 months and come up with every excuse under the sun to not give it back read the bad reviews and read it on Facebook they are all there
Faith M.
00:17 29 Mar 26
Avoid Willy’s workshop.‼️
I am currently pursuing legal action in relation to this matter due to ongoing concerns around delays, losses, and how the job has been handled. I would advise avoiding this company to your own benefit.
What was presented as a straightforward engine conversion with an estimated 3-week turnaround has turned into a 5+ month ongoing issue involving delays, poor communication, misleading updates, and serious concerns around transparency, workmanship, and overall conduct.
I paid $22,500 upfront in good faith after being told work would begin once the donor vehicle arrived on 22/10/2025. From that point forward, communication became extremely inconsistent. Emails, calls, and messages would often go unanswered for extended periods, and I had to constantly follow up just to receive basic updates. Despite multiple requests, I was never provided with a clear or reliable timeline.
This situation has had a significant impact on my family. We were left without a vehicle for an extended period, which was difficult given we have a 15-month-old daughter and my partner is currently pregnant now with all this stress. A temporary vehicle was only provided after I escalated the situation due to the delays already exceeding the agreed timeframe, and there have been ongoing concerns surrounding that arrangement.
The original timeline was not met, and the job has extended well beyond what was discussed. I was repeatedly advised that progress was being made, including wiring and major components, however when attending the workshop, the vehicle often appeared unchanged for extended periods. I was also advised the donor vehicle had changed, however when I attended, the same donor vehicle was still present and being used.
I have concerns about how the vehicle has been handled. Components have been left loose and exposed, and there were instances where parts and dirty items were placed inside the vehicle interior. The vehicle has also been left outside in the weather without adequate protection, which does not reflect the level of care expected.
There were also issues regarding invoicing and payment handling. I was initially sent an invoice for the full amount instead of a deposit, and after paying $22,500 in cash, documentation and clarity around payments were limited. The invoice contains a questionable MTA reference, and payments do not appear clearly reflected. I was also advised my original engine and gearbox would be sold and credited, however there has been no documentation or confirmation of this.
The process has felt disorganised, with poor communication between locations and staff often unable to provide clear answers or updates. My vehicle was also used without my consent, resulting in toll charges.
More recently, the situation escalated further. I attended the workshop on 27/03/2026 with a witness to organise a timeline and handover due to ongoing delays and lack of transparency. At that time, there were still concerns regarding lack of progress despite prior commitments that work would be completed by 30/03/2026. During this visit there was a physical interaction while attempting to request updates and documentation, which has been recorded on both CCTV and my own device and is now being addressed through the appropriate channels.
Due to the ongoing issues, I have sought legal advice and am currently pursuing a resolution through formal processes. I have also raised concerns with relevant authorities including Queensland Police, EPA, Transport, Fair Work, and MTA regarding aspects of this experience.
This situation has caused significant stress, financial impact, and disruption to my family. Based on my experience, I would strongly recommend others proceed with caution, particularly for complex or long-term work, and ensure everything is clearly documented.
I am currently pursuing legal action in relation to this matter due to ongoing concerns around delays, losses, and how the job has been handled. I would advise avoiding this company to your own benefit.
What was presented as a straightforward engine conversion with an estimated 3-week turnaround has turned into a 5+ month ongoing issue involving delays, poor communication, misleading updates, and serious concerns around transparency, workmanship, and overall conduct.
I paid $22,500 upfront in good faith after being told work would begin once the donor vehicle arrived on 22/10/2025. From that point forward, communication became extremely inconsistent. Emails, calls, and messages would often go unanswered for extended periods, and I had to constantly follow up just to receive basic updates. Despite multiple requests, I was never provided with a clear or reliable timeline.
This situation has had a significant impact on my family. We were left without a vehicle for an extended period, which was difficult given we have a 15-month-old daughter and my partner is currently pregnant now with all this stress. A temporary vehicle was only provided after I escalated the situation due to the delays already exceeding the agreed timeframe, and there have been ongoing concerns surrounding that arrangement.
The original timeline was not met, and the job has extended well beyond what was discussed. I was repeatedly advised that progress was being made, including wiring and major components, however when attending the workshop, the vehicle often appeared unchanged for extended periods. I was also advised the donor vehicle had changed, however when I attended, the same donor vehicle was still present and being used.
I have concerns about how the vehicle has been handled. Components have been left loose and exposed, and there were instances where parts and dirty items were placed inside the vehicle interior. The vehicle has also been left outside in the weather without adequate protection, which does not reflect the level of care expected.
There were also issues regarding invoicing and payment handling. I was initially sent an invoice for the full amount instead of a deposit, and after paying $22,500 in cash, documentation and clarity around payments were limited. The invoice contains a questionable MTA reference, and payments do not appear clearly reflected. I was also advised my original engine and gearbox would be sold and credited, however there has been no documentation or confirmation of this.
The process has felt disorganised, with poor communication between locations and staff often unable to provide clear answers or updates. My vehicle was also used without my consent, resulting in toll charges.
More recently, the situation escalated further. I attended the workshop on 27/03/2026 with a witness to organise a timeline and handover due to ongoing delays and lack of transparency. At that time, there were still concerns regarding lack of progress despite prior commitments that work would be completed by 30/03/2026. During this visit there was a physical interaction while attempting to request updates and documentation, which has been recorded on both CCTV and my own device and is now being addressed through the appropriate channels.
Due to the ongoing issues, I have sought legal advice and am currently pursuing a resolution through formal processes. I have also raised concerns with relevant authorities including Queensland Police, EPA, Transport, Fair Work, and MTA regarding aspects of this experience.
This situation has caused significant stress, financial impact, and disruption to my family. Based on my experience, I would strongly recommend others proceed with caution, particularly for complex or long-term work, and ensure everything is clearly documented.
Hien C.
00:17 28 Mar 26
Good service
Ben C.
08:36 19 Mar 26
These guys are great. Called them up about my subaru diesel with an issue and they explained it and had it turned around and all sorted in a matter of days. Highly recommend.
Peter M.
00:10 16 Mar 26
I put my Ute in to get the cams sensors done found out the cams were worn that was fair enough so I said do the cams and timing chain this was Nov 2025 was told the block was ok has it had good compression then I was told it needed a full rebuild in Dec 2025 I was never given a quote for the work then last week early march 2026 I was told it’s going to cost over $17000 to fix it and they still have not started the rebuild I rang many times about the car they say they will find out about it then they will call back but I’ve only had one call back ever
Kenz
19:52 15 Mar 26
They admitted they accidentally shorted out my Mercedes ECU when they were trying to work out the fault with the vehicle. They fitted another secondhand one for free, which I thought they should. But then charged me $1100 to tune the ECU to match my car. That I believe is wrong & I shouldn't have had to pay for. But I was made to pay. Couldn't take my vehicle without paying. Original problem wasn't resolved either. NEVER going back.
Jay B.
01:04 01 Mar 26
Straight talk by Andrew… friendly… booked in sooner than I expected… excellent price for the service… job was completed promptly… very happy with the result… I highly recommend ‘Willy's Workshop’, Warana…
Pat R.
19:23 14 Feb 26
Mercedes Sprinter. Turbos replaced, ECU replaced, ECU tuned, battery replaced. 16 times returned to fix it from going into limp mode. $8,920 out of pocket. Took it elsewhere. Fixed with a $80 waste gate vacuum valve! Willys had no idea how to fix it. Made contact 3 times after with Willys...washed their hands of it. I refitted old turbos, as nothing wrong with them and sold new turbos to gain some costs & to prove Willys are a disgrace.
Jonathan B.
10:09 10 Feb 26
Beware Beware Beware!
Very disappointed with the work done on my car. It went in to fix a coolant leak and tune and was returned to me with a hole in the radiator and slashes to my steering wheel. After the radiator was repaired, fuel was spraying all over the engine bay. Now the original work is leaking coolant. My wife has been stranded on the Kawana Way twice with low coolant warnings less than 3 minutes after picking up the vehicle.
The tune is great!
Even though I was promised that the steering wheel would be repaired this hasn’t happened. In addition, I was told a radiator from Audi was $2900 however when I called Audi an OEM radiator from Audi was $900 retail, I was charged $1100 for an aftermarket one.
The most disappointing was the communication, with lie after lie being told. My wife was told to “sell the car and get a Camry if you’re worried about the cost.”
DO NOT TRUST these people and don’t allow them to work on your car.
I have given them ample opportunity to address these issues but there has been no willingness to rectify the problems. $6000 plus later I am paying Audi to fix the car.
You have been warned. Please don’t do this to yourself.
Very disappointed with the work done on my car. It went in to fix a coolant leak and tune and was returned to me with a hole in the radiator and slashes to my steering wheel. After the radiator was repaired, fuel was spraying all over the engine bay. Now the original work is leaking coolant. My wife has been stranded on the Kawana Way twice with low coolant warnings less than 3 minutes after picking up the vehicle.
The tune is great!
Even though I was promised that the steering wheel would be repaired this hasn’t happened. In addition, I was told a radiator from Audi was $2900 however when I called Audi an OEM radiator from Audi was $900 retail, I was charged $1100 for an aftermarket one.
The most disappointing was the communication, with lie after lie being told. My wife was told to “sell the car and get a Camry if you’re worried about the cost.”
DO NOT TRUST these people and don’t allow them to work on your car.
I have given them ample opportunity to address these issues but there has been no willingness to rectify the problems. $6000 plus later I am paying Audi to fix the car.
You have been warned. Please don’t do this to yourself.
kurt C.
22:34 30 Jan 26
Awesome place! Really good quality work.
My car had various gaskets, turbo and other stuff replaced by these guys and 2 years later its still all perfect.
My car had various gaskets, turbo and other stuff replaced by these guys and 2 years later its still all perfect.
Craig P.
10:05 29 Jan 26
Anthony at Warana displayed excellent knowledge and explained the process well.
Invoiced as quoted even though the job took longer than expected due to rusted nuts.
I offered to pay more but he declined.
Extremely pleased with the overall experience.
Top work!
Invoiced as quoted even though the job took longer than expected due to rusted nuts.
I offered to pay more but he declined.
Extremely pleased with the overall experience.
Top work!
Shane C.
09:15 29 Jan 26
Anthony and his team are great ti deal with, so happy to find a good solid workshop you can trust to not only take care of your car but also very reasonably price. Keep up yye great work team Willys
Murray W.
01:46 21 Jan 26
Anthony was great, he fitted me in quick smart & the team performed a great servuce & clutch job for me. Professional & very reasonably priced, Willy’s Workshop is now my go-to for anything diesel & car related.
Thanks legends!
Thanks legends!
Glen M.
08:49 24 Dec 25
Had 2 service and mechanical jobs completed by willys and have been impressed with communication and honesty.
Chris B.
08:18 06 Nov 25
Awesome service and advise from the team, they really know their diesel engines!
Gloria D.
06:11 31 Oct 25
Outstanding service , 5 star all the way, helpful friendly staff in all levels from the owner, all other mechanics apprenticeses office staff, good pricing. I am a very happy customer. I would recommend this company to anyone.. Great work , great people.
Nicholas T.
08:15 28 Oct 25
Sent it in for a tuning package on Monday, was told will see it Friday; recieved it Tuesday same week. Had a few things tweaked as well so hopefully I will not see some pestering problems resurface. Communication was clear and timely. Will come back again for a service.
Rohan
00:07 27 Oct 25
Redone my timing chain and patiently pulled out all the rusted bolts and replaced them, also a major service.. very busy bunch of guys but they do aood job and are very reasonably priced.. I'm from Canberra, I hope I never have to go there again but I definitely will if anything happens.. thanks Willys
Bev J.
08:44 24 Oct 25
Happy with the service on the 2005 Coaster. Also advised minor issues to check on
FAQs
Got questions about logbook servicing? Our FAQ’s have the answers. We’ll break it down and give you the full picture on how regular servicing keeps your diesel running smooth, reliable, and in top condition.
What’s included in a custom tune for my US truck?
Our custom tuning adjusts key ECU parameters like fuel injection timing, boost pressure, throttle response, and torque management. Whether you want more power, improved towing capability, or better fuel efficiency, we fine-tune your truck to match your driving style.
How does multi-mapping work, and why is it useful?
Multi-mapping allows you to switch between different performance modes on the fly. Need extra torque for towing? Better fuel economy for long hauls? Maximum power for performance? With multi-mapping, you can adapt your truck’s tuning to different driving conditions with the push of a button, giving you ultimate flexibility without needing a retune.
Will tuning affect my truck’s reliability?
Not with us. Our expert tuning optimises performance without overloading the engine or drivetrain. Unlike aggressive, one-size-fits-all tunes that push components too hard, we focus on balanced tuning that enhances power and efficiency while keeping your truck running smoothly for the long haul.
Do I need to swap out my ECU for tuning?
No. Unlike other workshops that require costly ECU swaps, we’ve cracked the encryption on 2022+ models, allowing us to tune your truck directly through the factory ECU. This means no unnecessary hardware changes. Just pure software optimisation for better performance.
How long does the tuning process take?
Most tunes are completed in just a few hours. We start with a full diagnostic check, apply the custom tuning adjustments, and then test everything to make sure your truck performs exactly as expected.
Still have questions?
Articles & Resources
Looking for more info? Check out our articles and resources on Emissions Solutions or get in touch. Our team are on hand to answer your questions.
Get a quote
We’re here to help you with any inquiries.
Get in touch
Our Locations
Sunshine Coast
P: (07) 5619 7869
Text us : 0485 885 957
E: [email protected]
12 Commerce Ave, Warana, 4575
Customer Service Opening Hours:
Monday to Friday – 7:00 AM to 5:00 PM
Brisbane
P: (07) 3377 3421
Text us : 0485 885 957
E: [email protected]
291 Cliveden Avenue, Oxley, 4075
Customer Service Opening Hours:
Monday to Friday – 7:00 AM to 5:00 PM
