I found this site
http://www.rimsntires.com/packages.j...&req=newsearch a while ago when I considered replacing the BBSs because I thought my tire size was no longer available.
I shared that in this thread. .
http://rotarycarclub.com/rotary_foru...ad.php?t=18916 which had a good conversation with helpful info.
Obviously limitations are gonna be with the stock suspension but there are options out there. If the above calculator is correct then you can use that to give you an idea of what is available from whatever wheel manufacturer. .