I dont run KW so I'm not familiar with what strut type or spring size it has, these where mounted on Koni yellows and Eibach pro kit. A quick google seach landed me these post:
http://www.vorshlag.com/tech_strut_spring_guide.php
http://www.1addicts.com/forums/showthread.php?t=612023 ...this seems to confirm that it would fit v3's
http://www.e90post.com/forums/showthread.php?t=685291
http://www.1addicts.com/forums/showthread.php?t=563006