My FJ Cruiser cold air intake air filter was very dirty and really needed the K&N service kit to clean it. Once I took the filter out and used both the cleaner and oil, the K&N air filter looked almost new, and the FJ accelerated more smoothly. Will use again once dirt again sticks to this air filter.

use it in 2009 ranger

The product is wonderful, and very easy to use.

Spray on cleaning solution let sit but not dry hose off and let dry. Spray on oil solution and reinstall. Cleaning solution cleans all the old oil and any dry ang grime. takes time for drying properly but well worth the wait

Getting supplies not offered locally and in Albuquerque (3 hours away) has affordable prices.

Works great easy to use

I make sure to use this frequently, as I travel often off-road in dusty places. It's nice to be able to maintain my own air filtration and take advantage of the economy and added performance of the reusable K&N filter system. The instructions that come with the kit could go into a bit more detail.