can i put wider tires on my stock rims

Yes, but only within what your stock rim width safely supports—use a tyre width vs rim width chart and aim for a modest step (often +10–20 mm) that actually fits.

Keep overall diameter near stock (within about 2–3%) so your speedo, ABS, and stability control don’t throw a tantrum.

Check clearances for struts, guards, and brake lines; keep the tyre’s load and speed ratings at least what’s on the door placard; and get an alignment after fitting.

Local rules vary by state in Australia, so confirm what’s legal before you go full stance hero; a reputable tyre shop or a quick ring‑around via ServiceCentral will save grief later.