I just made available the new Stealth K&N Intakes for the C109R and am working on the C50 (2009+) as it has completely different filter setup compared to the 2005-2008 models. Also working on an M90 K&N intake to really open it up and keep it weather tight and stealth looking. Same thing going on with the M109R as well, so they can be ridden without them torpedo type appendages sticking into ones legs while they ride! (Sorry I have long legs and need as much room as I can get and ride around Seattle year around so I need all weather protection for the K&N)