Air Filters and carb boots

[Slaninar]

could i just expound the myth of 'high flow' filters.
if you fit an oiled filter, it will clog up with detritus faster than a plain paper filter (think of it as fly paper). pretty soon it will become a 'low flow' filter unless you clean it every 1000 miles or so.
i prefer to coat the inside of the airbox intake with chain lube and use a paper filter.
high flow = high maintainance (ime)

That is not correct. Experiments prove otherwise. High flow filters do allow better airflow. Downside is they allow a few % more of dirt to go through, but that hasn't been proven to be more damaging to any engine. Plus they give better airflow most of the time, unlike traditional filters which give reduced airflow as they are used over time.

Maintenance is a bit of work. However, instead of chainging regular filter every 10 k km, High Flow like a K&N needs cleaning every 20 k km, or even less often.

It costs more, but lasts longer. I've used it for years and like it so far. No problems at all.