I had both K&N and AA green filter. I love AA more than K&N. Why? Better build quality. I can take pictures of both if no one believes me. I have AA in the car, and K&N in my storage room.
AA Green Filter/AA Pulley/AA catless X-pipes/AA signature exhaust/AA TUNE/TMS studs/Project Kics R40/AD08/Vorsteiner GTS5 Bumper/LUX H8