IF you want the Kognition wing you need to contact Kognition themselves since its no longer listed on their site you would need to have them custom make you one.
you can do so here --->
kognitiondesign.com/wings
For those of you saying its heavy.... its actually not but thats because it is a true race wing. All of Kognitions wings are 100% Vacuum infused Carbon Fiber. It was not created to roll around the streets with and instead was designed and meant for serious track users.
And on that note, please keep the negative comments to a minimum, the OP was asking where to get one, not what you thought of it. (not trying to be a **** ...im
js)