Have a 2008 EGC w/25k on it. Completely stock except for a TFI. I have cleaned the stock air filter four times since purchase. This is the filter with the wire mesh so is designed to be cleaned and reused (at least that's what I was told). Anyway, the material was looking kinda frayed yesterday and got me to wondering. Is there a limit on how many times these stock filters can be cleaned? If so, what is it? If I need to replace it, what are some after market options? thanx.