Quick Question: I have a K&N intake on my stang. Put it in bout a year ago now. I was wondering two things,
1. How often the filter should be cleaned?
2. What is the best thing to use to clean it?

Thanks in advance

 

1) I hear it's typical to clean them every 12000 miles or so. More or less depending on where if you live, if it's very dusty, travel a lot of dirt roads, etc.
2) K&N Cleaning Kits. They're sold at most major auto parts stores(Checker, Autozone, etc.)