i have a ZX2R and i was cleaning my air filter for the 1st time since ive had it and when i took the thing out, it started to rip easly. its made out of foam and i washed many foam air filters before but never anything like this happened. i rang up a dealer and they said the air filter is no good and it needs to be replaced. god damn it!! i am getting an aftermarket uni filter now and hopefully this thing doesnt crumble or rip easly. anyone else had this problem?