Unless you live in really dusty environments I've never seen dust in a single car I've run them in including hundreds of friends, family and customers cars. If you live in that condition, ie if I go offroad, you could use a prefilter.
Check all the mounting brackets. Someone installed an S&B and they had a noise that ended up being a loose bracket at the bottom somewhere. At 3.25 secs
That makes no sense. They just it and you're off. Even if they monitor anything the procal has nothing you can adjust other than tire size. It's one of the safest tunes out there, hence why Ford even sells it and gives you a warranty.
Just got the entire truck done for $4200, which is cheap, and the stuff is thick. Every painted surface is covered. 10 year warranty. Then applied the new code orange outlined decals on top.
https://www.ranger6g.com/forum/threads/rc-mustang-azure-gray-raptor-build.19602/post-428530