max tire size on Style 37 M Parallel's

[NOVAblue740iL]

Whats the max tire size for Style 37 M Parallel staggered set of wheels (18x8 and 18x9) I have a 740iL sports

thanks

[M.Wong]

Michellin Pilot Sport A/S
18X8" with 255/45 18s front, 18X9.5" with 275/40 18s rear

http://images.cardomain.com/member_img_a/206000-206999/206524_195_full.jpg

http://images.cardomain.com/member_img_a/206000-206999/206524_196_full.jpg