dart451

So far, I have purchased two K&N air filters for my 97 Nissan 4x4 pickup but I cannot get the K&N filters to fit! It seems that the K&N filters are about a 1/4" to high and you can't get the top of the airbox to close or snap down! Is anyone else out there having this problem? I called K&N tech support and the guy said that my airbox is probably warped and that's why the filter won't fit. Well, how come a standard filter works just fine then? Any help would be appreciated!