I guess this is the correct forum to post my questions about modding my 2005 Cooper for STF autocross. I have been considering adding a CAI and wondered if any one here has any first hand knowledge about the WMW version. Also wondered how it compares to the aFe CAI also carried by Way. The picture on the WMW website doesn't really show the parts involved. Also the dyno results showing a comparison to something (I assume to be a stock filter) makes me wonder how it compares to the drop in K&N that I already have. Is the ~$200 investment worth it? Would appreciate your comments.