I've heard alot of people upgrade their air filters to the K&N air filter. i'm just wondering if they are any good, how are they meant to be cleaned? my current OEM one is really dirty with lots of things in their like dry grass, bird feathers and lots of other things. I am just wondering if it is worth cleaning or if its worth going for a K&N. i've found a K&N on eBay, can anyone tell me if that is any good? item number: 280245767411
Thanks



