You have Dunlop Direzzas @ $180 fitted and balanced in 225/45 R17

Can I safely and legally go to 235/45/ R17s on my Stock Euro 17 x 7 OEM Rims?

Jane's and Jax said yes as long as the tyre clears the strut tower.

If ti would be ok to go to 235.45s what do you have in stock and what are the prices incl fitting and balancing?

Thanks heaps