I used a Hyper Cool II unit in the 46 and happy with it so far. Compact and fit nicely up under the dash. With that being said the wifes 52 Sport Coupe has Old Air products in it and performs great. I also have a Vintage Air unit I am installing in a 35 coupe which I expect will work equally as well. I will say the fan kicks butt on the Old Air Products unit.
