Guys, have been doing this for many years and have tried every method know to man to avoid an oil mess changing the oil filter on a Twin Cam; there isn't one. Sure, you can hit it with a carb cleaner, degreaser, etc. but, over time, it is just a place for crud to collect and whatever you use to cleanup will find its way to the front motor mount on a touring model. The factory location for he TC oil filter has to be the worst possible place to locate an oil filter. It's almost as if the engineer got together and voted on the worst place to locate an oil filter. :shock A remote located filter is the only solution that eliminates cutting up large coke bottles, punching holes in filters to let them drain, making funnels out of the filter box, etc. If one has an oil cooler, the clean up is even more of a hassle and time consumed. All you need do is unscrew the remote filter and screw on a new one; takes all of five minutes with no mess, no cleanup and not bath. May not be worth $200 to some but if you change oil more than once a season, sure makes the oil change simple. Each to his own but I am tired of the messy drill and will be spending another $200 to install the system on the '02 FLHT. Besides, when the remote oil filter is observed by other riders, it always starts a conversation; great way to make new acquaintances.:hii