Trying to figure out how the Old School Greddy 3 Row Intercooler mounts.

This is the one that mounts behind the radiator core and supposedly does not need car modified. Can't quite figure out where it attaches.

My radiator is already vertically mounted (removing a Greddy M-Spec) as well as the AC condenser.

I'm sure there are no instructions floating around but if there are, I'd appreciate a link.