I installed the Minibeast yesterday on my RKC, easy as pie. I scared the hell out of a dog who ran out after me. I knew then it was money well spent. The only thing I don't like is the funky looking cover. If it looked better I'd put one on my Dyna.

 

I just did the Split install on my Stebel Nautilus today. It comes apart fairly easy and mounts in the existing horn cover. I used 5 minute epoxy to stick mine together. Then I spent 2 dadgum hours trying to find a location where to put the compressor on my 1998 Road Glide. I ended up putting the compressor under the right side cover. I don't remember if the link for the splitting the Nautilus is in the post or not but just in case here it is. Stebel Nautilus Install To many Soccer Moms on Cell phones to not change the original horn!