I had a different problem with mine. I washing the bike one day before going for a ride (luckily) and noticed that the chrome cover on the air filter was loose. I got the tools out to tighten it up and when I began to put a little pressure on the large center bolt that holds the chrome cover on, all of a sudden the cover is sitting in my hands. I damn near dropped the thing. The round center section around the large bolt hole had broke out.
Went to the dealer and they gave me a new one no questions asked. I was talking to a buddy about it and he said he had the same thing happen to him. He said someone told him that this is caused by not having the plastic backing plate to support the the chrome cover and the vibrations cause the metal to fatigue and then break. His solution was to take some 1" thick 3M foam (weather stripping) and cut four squares to put on towards the outer portion of the air cleaner. This is supposed to help distribute the vibration over the entire metal portion of the air cleaner instead just the area by the large bolt.
He has not had a problem since and neither have I since doing this with the new one.