Hello.
The transmission is very reliable. It's the preventive measures and maintenance that must be done timely.
- SST Oil needed to be flushed and replaced at every service interval.. Recommended 40k KM.. best done every 25k - 30k KM (depends on how you drive) If you track the car often, recommend to half the interval
- Stock SST Oil coolers are working fine... If the EvoX is the premium ones that comes with Spot Lights, recommended to remove them for better air flow.
- Upgrading Oil Coolers is a plus. however, not really needed unless you are a very heavy user.