I must say, I'm pretty unimpressed with these heat sinks. To start with, no instructions. Not that I needed them, but it would have been nice to have an idea of what they feel is correct installation. Next - the manufacturing QC is pretty bad. The screws that hold them together on each side where my main issue. The holes drilled through the sinks are not consistent. Some were threaded on the front, some on the back. I bought 6 sets of them. Luckily I noticed the problem before I started. I had to mix and match until I had six sets that would screw together correctly. The thermal compound for the memory was crappy. The plastic protection attached to it was attached so well, that the compound was pulled off of the sink each time the plastic was removed. Another note on the instructions - if someone had never worked with this stuff before, they would not have seen the plastic cover. Cooling - NOT what I expected. My OEM Apple memory runs at 140~145. The Corsair without heat sinks was 155~160. The Corsair with the Max Upgrades heat sinks is 150~155. I was expecting at least as good of cooling as the Apple Heat Sinks. The good - The did include good quality thermal compound for the AMB. The also included ArticCleaner cleaner and surface purifier. Has anyone tried these yet? What is your experience with them?