I have the front mount and they fit VERY WELL actually. Because I was leaning more towards stock - I use the stock overflow bottle, but I do use a smaller one zip-tied up front for track duty.
I kept the V-Fairing because I have stock fairing for street duties, it had to be modified (cut a bit) to fit with the front mount radiators.
All I can say is I LOVE THESE THINGS! It is a very rare occassion that my bike see temperatures close to 200 degrees... maybe that is why I got the ticket - damn bike and 205 MPH!
My kit is also from Greg (vtwist), great, great guy, and he has a newer larger oil cooler for the kits that will further drop your temperatures. Honestly, I think it is one modification that is well worth it.
Just my