SsangYong Performance Tuning
0800 328 886
SsangYong Musso
SsangYong Rexton
2.2L e-XDi turbo diesel
2.0L e-XGi turbo petrol
SsangYong turbo diesel engines



If you have a specific question regarding your SsangYong that is not answered here, please give us a call or submit the enquiry form because we can help - we will assist you personally.
Yes - the e-XDi is derived from Mercedes-Benz diesel technology and is a well-built, reliable engine. Stage 1 calibration stays within safe boost and fuelling limits, and we validate on NZ pump diesel with EGT logging under load. The engine has clear factory headroom, and the conservative tune we apply has a strong reliability track record on this architecture across multiple vehicle brands.
Yes - the extra torque reduces throttle demand at cruise speed, and NZ SsangYong owners report 5–8% improvement in highway economy. For a vehicle used on rural roads or for regular longer trips, this is a practical benefit that adds up over time. The efficiency gains are most consistent on open-road driving - in urban stop-start conditions the benefit is smaller, but throttle response improvement is still noticeable.
A Musso on Stage 1 gains 70–100Nm of torque and 25–40kW. For a value ute rated at 3,500kg towing capacity, this is a meaningful improvement in pulling confidence on grades. The gains are strongest in the 1,800–2,600RPM low-load range, which is where the Musso diesel is working hardest on hills with a trailer. Owners report that grades previously requiring a downshift can often be handled in a higher gear after tuning.
Yes - particularly because the improvement relative to purchase price is excellent. SsangYong vehicles offer strong value, and a remap improves them further without the cost overhead of hardware modifications. For a Musso or Rexton owner who uses their vehicle for real work or towing, the performance improvement is clearly justified. The tune also helps the diesel engine's efficiency, which is relevant for high-kilometre working vehicles.
Improve your SsangYong's performance with expert ECU tuning in Auckland. Contact us today and we'll outline what gains your Musso or Rexton can achieve.
Real Drivers, Real Results.
We're proud of the results we deliver, but don't just take our word for it. Read what our satisfied customers have to say about their experience with our professional mobile tuning service and the real-world performance gains they've enjoyed.
Auto Tune were exceptional. Their attention to detail and deep technical knowledge were evident throughout the tuning process. They managed to unlock the hidden potential of my vehicle, providing a noticeable boost in power and responsiveness. I highly recommend their services to any enthusiast.
2018 Subaru Forrester - Howick
I was thoroughly impressed with the friendly and efficient service at Auto Tune. They transformed my car’s performance while maintaining reliability, striking the perfect balance. The difference in the driving experience is night and day, and the entire team was a pleasure to deal with. I will definitely be a returning customer.
2020 Audi RS6 - Takapuna
I brought my diesel ute in looking for more pulling power, and the team at Auto Tuning absolutely delivered. The difference in low-end torque is massive; it now hauls heavy loads up hills without breaking a sweat. The biggest surprise has been the improvement in fuel economy during my daily commute. A proper, professional tune.
2021 Ford Ranger - Henderson