No, just perfect fit, you can't take you off unless you remove the big jubilee clip. Remember, it's air inlet, so it's not blowing air through there to spit the filter out
By collapsing, I ment like the problem some people have with the vortech air filter. Wasn't sure how sturdy mushroom filters were (I thought the vortech looked sturdy until I seen some people's pictures of it trying to enter the blower housing!)