Diesel Tuning

Unleash your diesel vehicle’s full potential with supercharged power, performance, and efficiency – all in one. At Willy’s Workshop, we specialise in diesel tuning, giving you more torque, better fuel economy, and a superior driving experience.

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Diesel tuning is what we do best at Willy’s Workshop. With years of focused experience, we cut through the noise to give you diesel performance that counts. Whether you need more power, better efficiency, or greater reliability, we stick to what works to get it done right.

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What is diesel tuning?

Diesel tuning, also known as engine remapping or chip tuning, involves modifying the settings of your vehicle’s Engine Control Unit (ECU) to optimise both performance and fuel efficiency.

By fine-tuning crucial factors like fuel injection timing, turbo boost, and throttle response, diesel tuning maximises your engine’s performance, ensuring it runs smoother, more powerfully, and more efficiently.

You may come across different terms like diesel tuning, ECU remapping, or transmission tuning. So, what’s the difference?

In short, there is none. Whether it’s called diesel tuning, ECU remapping, or transmission tuning, all these terms refer to the same process: adjusting your engine’s settings for better performance.

At Willy’s Workshop, we offer a range of specialised tuning services:

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ECU Remapping

Optimise your engine’s settings for better power, fuel efficiency, and throttle response.

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Multi-mapping

Customise your vehicle’s performance with multiple tuning options for different driving conditions.

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Model Upgrades

Boost your engine’s performance with upgrades designed specifically for your vehicle.

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Transmission Tuning

Fine-tune your transmission for smoother shifts and improved power delivery.

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Dyno Tuning

Get your vehicle running at peak performance with accurate dyno testing.

Performance dyno tuning

The benefits of diesel performance tuning

Willy’s Workshop brings out the best in your vehicle with expert diesel tuning, enhancing responsiveness and performance to match your driving style

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Increased power & torque

Diesel tuning dramatically increases your vehicle’s power and torque, improving acceleration and enhancing its towing capacity.

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Improved fuel efficiency

A well-calibrated tune improves fuel economy by optimising combustion, reducing waste, and making your vehicle more responsive.

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Enhanced driving experience

Beyond the engine, Willy’s can optimise your transmission settings for smoother gear shifts and better torque delivery. This reduces turbo lag and makes driving more enjoyable and efficient.

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Long-term engine health & reliability

A proper tune enhances performance without over-stressing the engine, reducing wear and tear. At Willy’s Workshop, our expert team guarantees a safe, reliable tune that boosts power while protecting your engine’s lifespan.

Vehicles We Tune

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Cars

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4x4s

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US Trucks

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Trucks

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Equipment

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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

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

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.

Efficiency

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 Choose Willy’s Workshop?

At Willy’s Workshop, we’ve earned a reputation as leaders in diesel mechanics, delivering expert service for every type of job – from routine repairs to major overhauls. We get the job done right, fast, and at a fair price.

Our commitment to you doesn’t stop at the workshop. Our team is always available to assist with any questions or concerns, from the details of your service to the breakdown of your invoice. We’re dedicated to making your experience straightforward, clear, and hassle-free.

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Diesel performance tuning specialists

At Willy’s Workshop, we focus on every detail to optimise your diesel’s power, fuel efficiency, and towing capacity for top-tier performance.

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Everything your diesel vehicle needs, under one roof

Whether it’s upgrading performance, tackling repairs, or handling regular maintenance, we manage every aspect of your diesel needs to get you back on the road faster.

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Advice you can trust

Our experience drives us to deliver accurate, honest advice and detailed care, guaranteeing your diesel is in expert hands from start to finish.

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Trusted & experienced

Diesel repairs, rebuilds, and upgrades are what we live for! With years of trusted experience, you can count on us to treat your diesel like it’s our own, always getting the job done right.

Willys Workshop Team

Testimonials

What our customers have to say

Sorted out issues with my Ford Everest

The guys at Willy's sorted out issues with my Ford Everest. Friendly staff and fast turnaround, couldn't recommend them enough

L Luke Madden
Couldn’t be more impressed with the workmanship from the guys.

New to the coast and chose Willys workshop to do a tune and service on my Range Rover Evoke. Couldn't be more impressed with the workmanship from the guys. More power and better fuel economy, great staff and will continue to use. Highly recommend

J Jarrod Humm
Would happily recommend this workshop.

Willys did a great job in diagnosing and fixing the problems with my Mercedes-Benz ML 350. Would happily recommend this workshop.

L Luke
What an awesome place to have work done to your car. Excellent.

Anthony you’re such a knowledgeable person and ever so helpful and informative. Highly appreciated and recommend Willys to anyone wanting work done on cars etc. Well done.

G Glenn Dunstan
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4.9
Based on 157 reviews
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Pat rock profile picture
Pat rock
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 Bonney profile picture
Jonathan Bonney
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.
kurt calleja profile picture
kurt calleja
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.
Craig Peebles profile picture
Craig Peebles
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!
Shane Claridge profile picture
Shane Claridge
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 Winship profile picture
Murray Winship
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!
Glen Morgan profile picture
Glen Morgan
08:49 24 Dec 25
Had 2 service and mechanical jobs completed by willys and have been impressed with communication and honesty.
Chris Botha profile picture
Chris Botha
08:18 06 Nov 25
Awesome service and advise from the team, they really know their diesel engines!
Gloria Darling profile picture
Gloria Darling
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 Tan profile picture
Nicholas Tan
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 profile picture
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 Johnson profile picture
Bev Johnson
08:44 24 Oct 25
Happy with the service on the 2005 Coaster. Also advised minor issues to check on

Ready for smarter tuning that delivers reliable results? Reach out today!

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FAQs

Got questions about diesel tuning? Our FAQ section is here to clear up any queries and provide you with the information you need to understand how tuning can boost your diesel vehicle’s performance.

What actually is diesel tuning?

Diesel tuning, sometimes called engine remapping or chip tuning, is the process of reprogramming the Engine Control Unit (ECU) in your diesel vehicle. This fine-tuning adjusts settings such as fuel injection timing, turbo boost levels, and throttle response, optimising the engine for greater power, improved fuel efficiency, and enhanced drivability.

How to tune a diesel engine?

Tuning a diesel engine typically involves:

ECU remapping: Reprogramming the ECU to optimise engine parameters.
Hardware upgrades: Installing components like upgraded turbochargers or intercoolers.
Transmission adjustments: Modifying transmission settings to complement engine enhancements.

How does diesel tuning work?

Diesel cars typically have more torque than horsepower, so they can pull heavy loads without using a lot of fuel compared to a petrol car. That torque, is also why diesel engines are usually heavier and have a shorter stroke than petrol engines, and are the preferred choice in big equipment.

The tuning process for diesel engines works by adjusting the air/fuel ratios, fuel injectors, and ignition timing. By doing this, the engine can produce more torque and power, which can help the car to pull more weight and go faster.

The best vehicles are Diesel, as they are more efficient than their petrol counterparts.

Are you thinking about your car! Let our team assess the current condition of your engine and what kind of performance upgrades your vehicle may need. We’ve tuned hundreds of cars, trucks, and SUVs, so we know what it takes to turn every diesel engine into a masterpiece with our tuning process.

When we start work with your turbo diesel engine, we will connect your car with our computer and testing tools to read the current conditions like:

  • Air fuel ratio
  • Boost pressure
  • Tacho speed & RPM
  • and much more

Our technicians do an in depth inspection of your vehicle condition. They also measure all sorts of characteristics, including engine power, fuel economy, cooling system efficiency, general driving ability & notify you, the customer of any issues.

Any engine that has an issue prior to tuning is fixed using the best quality parts with the state of the art and best quality workmanship. We will ensure that the right part is installed to perform its best. Our team goes the extra mile to ensure that your car receives only the best repairs and is repaired to the same condition as factory or better! We then can carry out the diesel tuning service to achieve more torque and more power! Sound good? Contact us to book in!

Why should I tune my diesel engine?

The goal of Diesel Performance Tuning is to increase the efficiency of your vehicle. With a few simple tweaks, our expert Diesel Mechanics will make your engine run better than ever. The best part is that you don’t need to spend a fortune to do it. A simple remap of the factory ECU can have amazing results without many thousands needed in expensive modifications.

How to improve diesel truck performance?

If your truck is in good working condition, we can perform a tune just like we would for a car! By fine-tuning the engine, we enhance its drivability while taking extra care to account for the unique challenges of larger diesel engines, which require expert precision to tune effectively.

At Willy’s Workshop, we’re trusted for restoring trucks to factory-level performance – or better – delivering results you can rely on.

Should I use a 'plug and play' diesel tuner

Engine tuners are small electronic devices that help improve the performance of your diesel engine. They attempt to ‘tune’ your engine to your specific needs as a driver. This is not the case at all and for the reasons below do not recommend them, We only recommend a full ecu remapping service.

Tuners are the easiest way to both increase power, fuel efficiency and improve engine performance, Although we do not recommend them at all, as they are not a custom remap to suit your car. We only flash the factory ecu, so we can fully control all of the factory parameters for any particular engine, while still maintaining any safety guards and warning systems. Many of these plug and play tuners trick your car into seeing factory values, while actually pouring fuel into the engine. This will give you a power increase to the vehicle and a perceived increase in torque at the expense of possibly blowing up your engine. We have removed countless piggyback systems after engine failures, and then performed the ecu remapping service at our workshop.

The end result every time is an increase in power, more torque, less fuel and a better turbo diesel vehicle all around. At the same time as the rebuild we can also offer upgrades to improve reliability.

Should I use diesel fuel additives?

Diesel fuel additives are meant to clean your injectors & fuel lines. They can also help keep your engine running at its best. The most common issue with diesel vehicles is that they don’t get enough lubrication. The additive you add to the fuel will help prevent fuel system issues – especially if you think you may have gotten a bad batch of fuel!  If your engine is having problems, there are other diesel additives to try, such as

  • Anti Friction Additives
  • Complete fuel system cleaners
  • Water dissolvers
  • Fuel Stabilizers
  • Corrosion inhibitors

As part of all logbook service Willys uses specialised injector cleaners to ensure you get the best life and diesel performance possible.

Still have questions?

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Articles & Resources

Looking for more info? Check out our articles and resources on Diesel Tuning or get in touch. Our team are on hand to answer your questions.

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We’re here to help you with any inquiries.

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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