These pre-oiled K&N air filters fit the standard size inlet of the intake manifold of the standard & elite Trophy Karts.

This is the stock replacement air filter used for the standard Trophy Kart.

Outerwears' pre-filters are use to provide additional protection from fine dust that clogs all air filters These pre-filters are highly recommended for off-road use since they will extend the service life of an air filter and prevents fine dust from entering the air intake. These pre-filters simply slip over an air filter.