I undid the oil filter all the way out on my 01, but it wont come out cause the nipple/bolt that comes out of the crankcase gets in the way. I have aftermarket Yosh SS headers...but I doubt Yosh would design their headers to get in the way of removing the oil filter... I notice that the bolt/nipple that the filter screw to looks to be removable, am I supposed to undo that bolt too to get the filter out? thanks....