I stopped by the Rmagic shop when I visited Japan in January. I purchased the Shift ****, and the Shift "color" (what was probably meant to be collar). I have not seen any specific threads on this or installs or how it fits, so I did not know what to expect. So in case anyone was wondering how it fits or what it does... In conclusion. - It will not work with the Axial Flow short throw shifter. - It will not work with the Rmagic short throw shifter. (this was stated in the product description on japanparts) - It will work with the stock shifter. - It does not snap onto the shifter like the stock collars do. - It does feel good with the stock shifter, but not as good as the axial flow. - It cost me 3,000 - Their Shop is super cool.