Top critical review
Defective product made my decision to stop using K&N filters
October 6, 2018
I've used K&N air filters on several vehicles. I've never noticed any improvement of either performance or gas mileage, but continued to use them since I paid so dearly for them. Until the last time I bought this cleaner kit. The cleaner bottle pump was received defective and would not spray. I had to find another spray bottle and fill it with the product to use it. This experience has finally made my decision that K&N air filters are NOT worth the hassle, mess, time, and overall expense. I'm done with K&N filters, back to OEM paper filters from now on for all my vehicles!