Easy to use, quick results. Instructions are clear and you can really tell what spots need touched up when re-oiling.

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

great, quick product.

Very efficient, it's better than buying a new filter. The only thing that you should care about is the amount of oil you'll put on the filter. If you use your car a lot of time on dirt, then you should put a good amount. Wait to the filter to dry of it's own. Dont wash it with pressure water. I clean my k&n filter about every 5,000 - 8,000 miles because I use my car on dirt many times and it gets dirty quickly. Dont waste your time and money buying and changing filters, just clean it when it needs to.

Keeps my K&N air filters performing at their best. Easy to use and easy to clean up after. I put a lot of miles on my vehicles and I only use K&N airfilters and their cleaning kits to get the most miles out of each filter.

The product is wonderful, and very easy to use.