Can any one reccomend suitable foam filters to fit inside an HRC 21 airbox. Are foam ones better than K@N type? Also is it best to run them dry or oiled. Who is the best supplier of these. Anyone got any ideas? _________________ Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto
If the carbs are inside a HRC air box then no filter at all is best.
Filter wise though. RAM AIR do some good ones. Foam filters are better than the K&N style ones. Also make sure the end of the filter is foam rather than a metal plate. Get the largest volume ones you can as well.
Wet filters of course filter better than dry ones. Dry makes set up a little easier though and more consistent. _________________ If I have to take the carbs off once more...
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