Our friendly team is here to get the most out of your 4WD. Get in touch and let us know how we can help you.


Diesel performance tuning, or Diesel performance chips, is the modification of diesel-powered vehicles to improve performance and efficiency. The modification usually involves an engine control unit (ECU) upgrade, which will change the ECU’s current settings and adjust the fuel injection timing and duration of engine revolutions per minute.

Choosing the right Diesel Tuning in Perth is essential for your 4wd because it will allow you to get the best service possible and help you to avoid costly repairs.

What are the reasons for choosing the best Diesel Tuning Mechanic in Perth?

Many factors should be considered when choosing a Diesel Tuning Perth, so make sure they have some experience before you add them to your list of potential vendors. So why might you consider a particular Diesel Tuning Dealer?

The Locked In Garage has experienced and licensed mechanics (many of whom are diesel experts) with the highest skill level. This means you can rest easy knowing that your vehicle is in skilled hands and will be properly serviced. At The Locked In Garage, we offer something many other Diesel Tuning Dealers can’t.


Do you want more out of your modern diesel? Tell us what you want to achieve & we’ll help you get there.


We have partnered with the best suppliers in the business because a high-performance vehicle needs parts that can stand the strain.


Keeping your engine in top condition with our log book services, preventing long term issues and keeping your warranty in check!



Our friendly team is here to get the most out of your 4WD. Get in touch and let us know how we can help you.


Why us ?

We adjust our tuning services to meet your demands and the make and model of your car. For Diesel Performance Perth, we also ensure everything is done within the diesel engine of your car’s safety limits.


Our diesel tuning software can be used for many diesel programs, including:

  • Diesel tuning for utes, cars, trucks, 4WDs & Utes with a Bosch or Motronic diesel injection system.
  • Adjusting the injection pump timing and duty cycle to reduce smoke levels and increase power and economy.
  • Customization for vehicles that require specific adjustments to eliminate smoke and improve efficiency.
  • We can even provide you with a custom tune; ask our technician.


Q. Why choose a diesel tune when there are many other performance features I could add to my vehicle?

A. There are many factors, not just the performance features, so you should have all those done simultaneously. However, if you only have time or money to get a few things done (such as a custom tune), then that is fine.

Diesel Tuning in Perth
Get a quote online and we will respond within 24 hours. With professional service and a passion for what we do. We look forward to hearing from you.

What our clients say

"My dad was a mechanical engineer specialising in race cars. His dad was a mechanic. Mechanical performance is in our blood."

— David Collins, Managing Director