I have minor rub only on diagnol surfaces with 265's on a 18x9 rim with a +26 offset. Most mustang 18x9's are +24, which is closer in slightly. Therefore you will have some rub with 275's in front, but it won't be that bad.
Actually, I did manage to get a little rash on my rim (****ing ), but that was probably because I was being stupid and not paying attention.
The short sidewall is great up front. Steering response is quick, and there's less drama in the turn. Not to mention they're Yokohama AVS Sports and will let you hang the car on a wall.
I was just messing around with your typo . I don't think 265/35/18 is all that bad unless its on a 9.5 or greater width rim. So u like the AVS sports huh? I have the AVS ES100 all the way around, they're great, but still let loose when I put down the torque on turns. I'm considering the Sports or MX as my next set.
I'm going to be getting my rims today and I need to get some tires for them. What is the widest I can go on a 9 inch rim? I was going to get 275's all the way around but I would like to get 285's in the rear.