SsangYong Diesel Performance Tuning & Servicing in QLD
The SsangYong Musso ute and Rexton wagon brought genuine value to the Australian 4WD market, and at the heart of both sits the 2.2-litre e-XDi220 turbo-diesel four. In the Musso it makes 133kW with 400Nm in the manual, rising to 420Nm in the Aisin six-speed automatic (and on torque-pack and XLV models), and it is rated to tow 3500kg braked in auto form. The later Rexton runs an uprated version of the same engine producing 149kW and 441Nm through an eight-speed automatic. They are honest, capable diesels, but like every modern common-rail platform they respond well to proper attention.
Willy’s Workshop tunes and services SsangYong diesels at both our Oxley (Brisbane) and Warana (Sunshine Coast) workshops. The e-XDi220 leaves the factory with a conservative ECU calibration that prioritises emissions compliance and a wide margin of safety over driveability. That leaves real, usable improvement on the table in mid-range torque and throttle response, particularly for owners who tow at or near the 3500kg limit or load the tray for work.
We are a diesel performance and mechanical specialist, not a flash-and-go file seller. Every SsangYong tune is developed in-house on the factory ECU and verified on the dyno, and every service is built around the known weak points of these engines, EGR carbon, DPF regeneration and the timing chain, so the vehicle stays reliable long after it leaves the hoist.
SsangYong diesel engines we tune
What will your SsangYong make?
Pick your model to see typical gains from a Willys Workshop tune.
Indicative gains on a stock vehicle, measured on a dyno at the engine (crank) — wheel power reads lower (typically 15–20% on a 4WD). Actual results vary with vehicle condition, fuel quality and modifications.
Indicative rear-wheel (dyno) figures with switchable maps, emissions intact. Actual results vary with vehicle condition, fuel quality and modifications.
Why choose Willy’s for your SsangYong
Performance Tuning
Custom in-house ECU tuning for the 2.2 e-XDi220, developed and dyno-verified on your vehicle, not loaded from a generic file.
- Custom calibration of the factory ECU on the e-XDi220 to lift mid-range torque and sharpen throttle response, tuned to how you actually drive the Musso or Rexton
- Every tune is verified on our in-house dyno across the full rev range, so gains are measured and the air-fuel and EGT margins stay safe
- Towing-focused calibrations for Mussos working at or near the 3500kg braked rating, smoothing power delivery and reducing the need to hold low gears on hills
- Tuning matched to condition, we assess the EGR, DPF and intake first, because a clean, healthy engine is the only sound base for any power increase
Servicing & Repair
Full mechanical servicing and repair for the Musso and Rexton, targeting the e-XDi220’s real-world wear points.
- Logbook and major servicing using correct-spec oils and filters, keeping factory and aftermarket warranty obligations intact
- EGR valve, cooler and intake cleaning or replacement, the carbon buildup that commonly restricts these engines from around 60,000 to 90,000km
- DPF diagnosis, forced regeneration and cleaning for vehicles doing mostly short urban runs where the filter never fully regenerates on its own
- Timing chain and tensioner inspection and replacement, catching chain slap before it becomes major internal engine damage
Why drivers trust Willy’s Workshop

SsangYong diesel FAQs
Is tuning a SsangYong Musso or Rexton worth it, and what does it cost?
Will a tune void my SsangYong factory warranty?
Can you fix DPF, EGR and AdBlue problems, and is removing them legal?
What performance gains can I expect from the 2.2 e-XDi220?
Which SsangYong engines and model years do you work on?
How do I book, and how long does the work take?
Book your SsangYong in
We tune and service across South-East Queensland — choose the workshop nearest you.

