yep, very good cores, as good as any top brand you can thing of, Jap included. They are not the cheapest, I think i paid around 1600 for mine a few years ago.
Excellent flow and rapid heating/cooling properties (they heat up as quick as they cool down air, a trait of tube and fin intercoolers) very light.
Personally, if I had my time again I would just get a good front mount and be done with it.
PS, saw you in Mandurah Wednesday, where's the love man? you just sat low/pimpin styles and drove right by, not even a glance, haha (me, blue 01 WRX)