Titan Fenrir Universal CPU Cooler
 

Between all CPU coolers I have tested in the past, this one seems to have the easiest and fastest mounting procedure. It can be very easy uninstalled from the motherboard, too. I was curious to see if I can dethrone the Noctua NH-U12P with 2 fans, with the Fenrir; I did not manage to do this, but, as performance, this cooler can be placed between the Kama Angle and the Noctua NH-U12-P.

http://www.pcshoptalk.com/forum/showthread.php?t=15565