The 225X45's are basically the same height as stock and less than an inch (America speak ) wider so I don't think you'll have any problems. The 50's are almost 30 mils taller and might very well bring on the dreaded "syndrome de rub".
Sarge43
"00" Tique 2.0L I4 ATX
"98" Mustang 3.8L V6 AT
The reason there's so much ignorance is that those who have it are so eager to share it.