I know, but this is for my gasser. I have had it in for 18,000 miles and it doesn't look too bad. Should I clean it, or wait?

The second one is of the top of the filter. Sorry for the quality, I took it with my phone...

Clean it, sell it and buy a AC Delco. K&N are junk, gas or diesel.

Clean it, sell it and buy a AC Delco. K&N are junk, gas or diesel.
I got it for free and haven't had problems with it on the truck. I am not gonna sell, I'd rather have the flow, than max filtration as the truck is invincible... Sorta slow, but invincible. :D