I have a 330 with the same wheel setup as you. I run the Pilot Sports and Love them!!! I know they are expensive, but I think they are worth the money!!! Just put them back on this past weekend and the difference is huge. Very low noise! Also, going to the 255 should not make any difference because the wheel can hold that width and I'm 99.99% sure it will not rub!
I'm just a crazy m*thrf*cker, livin it up, not givin a f*ck, living life in the fast lane