Recent post included a YouTube video that made the K&N air cleaners look pretty dismal. Soooo, is there a substitute air cleaner that will fit where the K&N used to be?
The K&N's have worked well for me for >20 years. I've probably gone through 4ish filters in that time. They fit, they work. I don't see a reason to change.
I like the Project Farm vids but on what circumstances do we encounter flour while flying?
If you’re doing a bunch of dusty off field stuff then maybe you you think twice but 90% of our engine operations are in fairly clean air. I use K&N and oil analysis always indicate good filtration as indicated by silicone levels in oil