NZXT seems to make quality equipment at a fair price. They are reputable. You could essentially replace the standard 92mm fans that come with it with any 92mm fan really. There is a Vortec Tornado 92mm fan out there that puts out an insane amount of CFM air, but they are extremely loud. If you find any other 92mm fan that puts out higher CFM air flow than what comes stock, You could easily pop that in. If you get too large of a 92mm fan, It could make the card eat up more than just a dual slot if you have a sound card next to it on your motherboard though, so you will have to experiment with clearance to make sure that it fits.