Widest tire for a stock rim?

I looked up in the FAQ and couldnt find a exact answer. The largest size it lists is a 255/50/r16 is this true or can I possibly fit a 265 or 275.

I have stock 16 x 8 TA rims and would like to run the widest tire possible without issues. There are pics on my cardomain in my sig.

Thanks in advance
Kevin C

Have you tried finding street tires in the 265 and 275 size?
I know it's a pain in the ass to mount a 265/45/16 to a stock 16x8 wheel, my brother and I had a tough time mounting my kumho race tires.

This is what the 265 looks like. (I need to get some better shots of the wheels sometime).
http://www.transamws6.com/pics/acu4-6-07/acu4-6-07-03.jpg

http://www.transamws6.com/pics/acu4-6-07/acu4-6-07-02.jpg