MustangGT0405

Max recommended is a 255/50/17.

If you want to run a taller tire a 275/50/17 will fit but it is 28" tall. Problem is for street tires is that there arent any performance tires in that size.

If you want max traction you can get a 275/50/17 M&H DR which is ok for the street but you have to be very careful in the rain.

BIGDEEZ

for daily driving I have heard don't go over the 255... if it's just for the track you can do a 275.

I also have the 255 on mine and havn't had any problems.

rdsx18

For daily driving the widest I would go is 255.

Nuke

RECOMMENDED on a stock 17 x 8 Bullitt wheel is actually 235 but you can probably go 255's safely. The recommended on the 18 x 8.5 is 255, FWIW.

Check the tire manufacturer's tire specs for his recommended wheel size for any given tire.

Nuke

Double post.