11.5 inch wheels?
 

I've done some search in the forum to no avail. I've the opportunity to buy some cheap 19 in wheels that are 11.5 inch wide for the rear wheels. JD tells me it wont fit on my 986 boxster. I believe him since the wheels do look very wide, but I am Wondering whether anyone else can weigh in. Thanks.

No, those are way too wide. A 10" fits but just barely.

Or you could flare your fenders like this: http://986forum.com/forums/performance-technical-chat/27248-20-rims-rear-986-boxster.html

Never happen on my car though. ;)

Won't fit...period.