Installed a V1 intercooler yesterday and it did NOT fit at all with trimming the lower dam. I even left off the bottom support. Headlight wouldn't go back in properly and it broke a tab. Had to pull it back apart today and trimmed even more off of it (almost to the point where it was barely mountable). Finally everything went together correctly, but man it was not fun.
The performance is night and day different, even in 50F weather.