I'm on my 3rd set , had one on my full wing first and then my red F6B sounded great . Just picked up a black F6B and that was the first item I orderd .
Riders Depot on ebay under $800 , I think 789 plus free ship .
They sound great , easy to install , they do make a drag baffle , I have run them with out the end defuser and sounds good also just louder .
They sound great , no lean popping on decelleration ....