Since cabin air filters are a forgotten item most of the time. I'm guilty. I figured maybe a little spot on the forum to post up some of the nasty ones. Here is my 2002 Silverado filters. I just checked and these have been in there for 2 years and 26 days and have 17,699 miles on them. I try to change the cabin air filter out once a year but as usual I missed a year. The one picture is what fell out as I pulled the filters out.