I went with a 4x120mm radiator. Since I was mounting fans on only one side, I removed the mounts from the other side of the radiator to give it a cleaner look. This turned out really well. When doing the flushing of the radiator I found a small leak. I fixed this with some epoxy filler and sanded it. I used a cheap home water filter when flushing the radiator. Afterwards I spray painted the radiator to give a nice finish, since the factory finish was quite poor.