You may be pushing it with those. A quick check at Tire Rack shows the 275/60 is about 3/4" wider and about 1" larger dimeter than the 255/60, based on same type tire & manufacturer. And, the 275/60 tire may also encounter some sidewall bulge on the stock wheels, which might also affect (front end) handling.Do you think 275/60 would be to wide, not worried about height.