K and N Air filter cleaning

[darrsi]

I use a bucket of warm water with washing powder in it, which has similar chemicals to the proper stuff.
Just rock the filter side to side for about 15mins then rinse off with clean water and let it dry naturally (don’t use compressed air).
I do still use the K&N spray oil when it’s dry though, which does last a very long time.


Washing powder certainly does work okay, judging by the colour of the water afterwards. But make sure the water isn’t very hot in case it distorts the rubber.