Our custom multi-mapping solutions let you toggle between different driving profiles—ideal for daily use, towing, or off-road—so you can adjust performance to suit your driving needs.
Looking to get more from your Toyota diesel? Many owners find that factory engine calibrations are conservatively tuned to meet broad global standards, rather than tailored to Australian conditions.
At Just Autos, we’ve spent years refining our diesel tuning services for Toyota engines. Our custom ECU remapping and dyno tuning packages are designed to unlock unused performance—potentially increasing torque and power output—while maintaining safe operating parameters and mechanical reliability.
*Just Autos and this website are not affiliated with, endorsed by, or associated with Toyota. All trademarks, service marks, and logos used on this website are the property of their respective owners. The mention of Toyota on this website is solely for informational purposes and does not imply any partnership, sponsorship, or affiliation.
The heart of our diesel tuning service is professional ECU remapping. We’ve found that most Toyota diesel engines have conservative factory settings that significantly restrict performance. Our technicians carefully modify your vehicle’s electronic control unit to optimise fuel delivery, boost pressure and timing – resulting in noticeable improvements in power and drivability.
What makes our approach different? We don’t use generic “off-the-shelf” tunes. Each vehicle receives a custom-tailored remap based on your specific driving needs and Toyota model.
From the moment you make contact with our sales team, you’ll experience the Just Autos difference. We take the time to understand your specific vehicle, how you drive it, and what your performance goals are. Our team provides transparent advice and sets realistic expectations tailored to your setup.
Once your booking is confirmed, your vehicle undergoes a full pre-tune inspection and diagnostic check. This ensures the engine and associated components are in good condition and ready for calibration. From there, our in-house tuning specialists develop a custom remap—not a preloaded or generic file—specific to your Toyota model and intended use.
The remapping process includes live tuning on our dyno, where we carefully measure outputs and refine the calibration to deliver safe, measurable gains. After testing and validation, we provide a detailed handover that walks you through the changes made, how to monitor performance, and how to get the most out of your upgrade.
At every step, we prioritise reliability, transparency, and real-world performance.
At Just Autos, our state-of-the-art dynamometer is the backbone of our precision tuning process. It allows us to accurately assess your Toyota’s performance before and after tuning, ensuring any improvements are measurable and reliable.
What sets us apart is our team of trained, in-house tuning technicians who not only operate the dyno—but know exactly how to interpret the data. With deep experience in Toyota diesel platforms, they make real-time adjustments that align with your vehicle’s condition, usage, and performance goals.
This scientific approach enables us to:
We offer several performance upgrade packages tailored specifically for Toyota diesel engines. Contact one of our team today or use our package builder to build a performance packaged tailored to your needs.
