The search feature won't allow a search for 169 air cleaner, so I don't know if I am an innovator or copier, but here is my take on it. I thought it would look cool on my 123, so I made one. I used a noise suppression cleaner, off of a Case 2XX, that I found on eBay for cheap, a hat from a M20 that I parted, the wing nut from the 123, an expensive seal and cheap filter/pre filter kit from Kohler, a piece of all thread and a nut coupler, and a 2" hole saw. I don't think it would fool a judge, or is show quality, but it didn't cost much and I think it will look cool on my 123.
http://www.onlycubcadets.net/forum/a...1&d=1388121233