Of course i did. Using a Jigsaw. I measured the rad and then did some makrs to see whats needed to be cut on the bottom of the case. Also, to answer your question. Yeah i needed to put the case on wheels (that came witht he case when i bought it) so that there is enough space under the case for the fans to actually s*ck air!That's a really neat place to put the radiator (bottom of the case)- did you have to cut the bottom panel out to allow airflow?