Pipercross Cleaning Instructions The cleaning of a Pipercross air filter should be carried out as below. Failure to do this could result in damage to the air filter or even the vehicle.
Remove excess dirt by gently brushing the filter. Apply cleaning additive (C9003 or C9000) liberally. Massage in with soft brush. Allow to soak for around 5 minutes. Flush the filter out with warm water from the clean side of the foam to the dirty side. Allow the filter to dry naturally (do not apply any heat to the filter!!) Lightly apply dirt retention additive (C9007 or C9001) on the dirty (black) side of the foam. Steps 2-4 may need to be repeated until the filter is clean. Do not over oil the foam as this will cause a lack of performance