Originally Posted by reddishdsb
1/8 scale buggies, do you go through a lot of filters?
Sometimes, it's much better to change filters than rebuild an engine.
I use the stock Kyosho SP2 filter on my 777 with prefilters from either OFNA or Panther over the stock element. If it's very dry and dusty I oil both the filter and the prefilter to trap all the dust. Just have several pre-oiled prefilters on hand and change them every other heat or sooner as necessary.