Are you tired of your 4×4 underperforming or struggling off-road? Willy’s Workshop has your back! We fine-tune your ride for ultimate performance, delivering more power, smoother handling, and the off-road ability you crave. Get ready for smoother trails and trouble-free adventures.
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Trust Willy’s Workshop for expert 4×4 diesel tuning and unmatched off-road performance
If you’re ready to unlock your 4×4’s true power, Willy’s Workshop is the place for you. With years of hands-on expertise, we specialise in tuning your vehicle to handle any challenge. From suspension and engine tweaks to drivetrain upgrades, we dive deep to make sure your 4×4 runs like a beast on any terrain.
Expect more power, a smoother ride, and the rock-solid reliability you need to take on whatever the road—or trail—throws at you. Trust us to unleash the full potential of your 4×4.
What is 4×4 Diesel Tuning?
4×4 tuning is all about upgrading various components of your rig to get it performing at its absolute best—especially for off-road conditions. These upgrades can include engine remapping, suspension modifications, and drivetrain enhancements.
The goal is to boost power, improve handling, and increase reliability, getting your 4×4 ready to handle tough terrain with ease.
At Willy’s Workshop, we take a personalised approach to tuning. We don’t just apply a one-size-fits-all solution—we adjust every detail to suit how you drive and where you drive, making sure your 4×4 is fine-tuned for peak performance.
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The advantages of 4×4 diesel tuning
Tuning your 4×4 is about so much more than just adding extra power to your ride. It’s about getting the best possible performance in every situation. At Willy’s Workshop, we use advanced diagnostics and precision adjustments to bring out the best in your 4×4. Here’s what you can expect:
More power, more control
We adjust your ECU and refine the air-fuel ratio to increase horsepower and torque, giving you quicker acceleration, sharper handling, and the confidence to tackle any terrain.
We adjust your ECU and refine the air-fuel ratio to increase horsepower and torque, giving you quicker acceleration, sharper handling, and the confidence to tackle any terrain.
Better fuel efficiency
Through custom ECU mapping and airflow improvements, we help your engine run more efficiently—meaning fewer trips to the pump and more savings in your pocket.
Through custom ECU mapping and airflow improvements, we help your engine run more efficiently—meaning fewer trips to the pump and more savings in your pocket.
Stronger towing capability
By increasing torque output and fine-tuning gear ratios, we make sure your 4×4 can handle heavy loads with ease, whether you’re towing a trailer or hauling gear.
By increasing torque output and fine-tuning gear ratios, we make sure your 4×4 can handle heavy loads with ease, whether you’re towing a trailer or hauling gear.
Smoother ride
We optimise throttle response and transmission shifts to eliminate engine lag and harsh gear changes, giving you a more comfortable and controlled drive.
We optimise throttle response and transmission shifts to eliminate engine lag and harsh gear changes, giving you a more comfortable and controlled drive.
Makes & Models
Here are some of the most common 4×4’s we see through our shop. If you don’t see your vehicle here, don’t panic. In over 20 years we’ve worked on anything and everything with an engine, so chances are we’ve worked on your car too. Any questions, give us a call.
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- Ford Ranger
- Mazda B250
- Toyota Landcruiser
- Toyota Hilux
- Toyota Prado
- Isuzu DMax
- Ram 2500 and 3500
- Silverado 2500 and above
- F250, F350, F450, F550
Performance Tuning Packages
At Willy’s Workshop, our diesel tuning service transforms the way your vehicle performs, with expert calibrations for a more responsive drive tailored to your needs.
Power Tuning
Craving more power? Our performance tune is your ticket to a powerhouse ride. Expect a power boost, smoother torque, reduced turbo lag, and overall stronger performance – safely calibrated to keep your engine running like a dream for the long haul.
Towing & Touring
Need your vehicle to handle heavy loads with ease? A performance tune will enhance your vehicle’s towing capabilities, delivering more torque and power where you need it most. Whether you’re hauling heavy loads or towing your gear, we’ll make sure your vehicle’s ready for the challenge with added safety and confidence.
ECO/Efficiency Tuning
Want to get more from your diesel without breaking the bank? Our Diesel Eco Tune optimises your factory ECU for smoother power delivery and better fuel efficiency. Save money at the pump while keeping your diesel running strong and smooth.
Why Willy’s Workshop is the go-to for 4×4 diesel tuning
At Willy’s Workshop, we’ve built a solid reputation for expert 4×4 tuning. Whether it’s fine-tuning the suspension or boosting engine power, we handle it all with precision and care—delivering top-tier results quickly and at a fair price.
Our service doesn’t end when your 4×4 leaves the shop. Willy’s Workshop is always available to walk you through any part of your tune-up or address any questions—from the technical details to the final breakdown of your service. We’re here to ensure your experience is simple, transparent and hassle-free.
4×4 tuning experts
At Willy’s, we take 4×4 tuning to the next level. We fine-tune every aspect to give you enhanced power, better control, and smoother handling off-road. From suspension tweaks to engine upgrades, we make sure your 4×4 is ready for any challenge.
Your 4×4’s complete care, all in one place
Whether it’s performance tuning, repairs, or ongoing maintenance, Willy’s Workshop is your one-stop shop for everything 4×4. No need to juggle between shops—we handle it all in one place.
Advice you can trust
You can trust our team for clear, practical advice on your 4×4. We keep things simple, no jargon—just real knowledge to make sure you’re in the loop every step of the way.
Proven expertise
4×4 tuning is an extension of our diesel expertise. With years of experience in diesel mechanics, we bring the same precision and care to tuning your 4×4. Whether it’s fine-tuning the engine for better performance or making sure your 4×4 handles tough trails, we focus on getting the best results for your vehicle.
Experience the difference a proper tune makes.
Reach out to Willy’s Workshop and get your 4×4 tuned for the performance you deserve.
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.
How long does 4x4 tuning take?
We aim to get you back on the road as quickly as possible. Most tunes can be done in a few hours, but we’ll always let you know what to expect before starting the work.
Can tuning improve my fuel efficiency?
Absolutely! Our Eco Tune refines your 4×4’s fuel use, helping you get more out of every tank without sacrificing power. It’s the best of both worlds.
Is tuning safe for my 4x4?
You bet! At Willy’s, we take extra care to ensure every tune is spot on. Using the best tools and techniques, our team makes sure your 4×4 not only performs at its best but does so safely and reliably, whether you’re hitting the road or tackling the toughest trails.
Do I need to tune my 4x4 regularly?
Getting your engine tuned is usually only done once. However, if your requirements change, you’re no longer looking for torque and want to go for more fuel efficiency or if you’re looking to tweak the power profile of your vehicle, then a revision tune may be required. Tune adjustments, like this, are cheaper than a full tune. Get in touch if you have any questions.
Can you tune any 4x4 model?
Yep! Whether you’re driving a classic or a new model, we can fine-tune your 4×4 to make sure it’s running at its best. If you’re not sure, just give us a call and we’ll chat about what we can do for you.
Still have questions?
Articles & Resources
Looking for more info? Check out our articles and resources on 4×4 Tuning 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
