The heat sink is a little aluminum sink that radio shack sells for a buck and change. There's one screw hole in it, and I put a screw through that hole and into the metal xmods heat sink. The ribs in the xmods sink holds onto it pretty well, but I also glued it for good measure. I had to drill another hole large enough for the front screw to pass through in order to take the heat sink off. Mounted as is, it fits right under the lancer body without modification. On my friend's mustang I had to grind the back of the fins down to fit.
Padon the dirt, haven't had a chance to clean it up after my last run.
http://www.deviantart.com/view/31038877/
http://www.deviantart.com/view/31038910/