I didn't want to beat him over here....but Matt Robertson has done it again....Frankentake IV. It is a simple CAI that can be built for about 100 bucks and the posts about improvements is a nice read. Easily competes with Bwoody and RDP styles. http://www.lxforums.com/board/showthread.php?t=144147 Judging by the thread... Frankentake V may not be far behind, lighter weight and bigger 6" filter with velocity stack to reduce to 4" tube. ..