In the case they look much better than the stock fans,and are so quiet as to be almost unnoticeable.My only prob was with the silicone silencer mounts,they feel soft and breakable when you try to pull thru the case,as you know screws won't work,I was afraid to stretch them fearing breakage,you need a good pair of needle-nose pliers,along with confidence in the silicone mounts,be gentle,they will not only stretch enough,but will hold the fans,though you won't think so at first.