Pre-oiled filter KTM EXC125/250/300/450/525 2007-2009

Initially, the Twin Air Factory Pre-Oiled filters were only available to top professional teams. The results were so good that we now offer the same factory treatment to everyone. We start with an original Dual Stage air filter and completely submerge it in BIO Liquid Power Filter Oil. After massaging the filter to ensure all pores are evenly coated with oil, it's placed in a temperature-controlled chamber to allow the oil to fully cure. Simply open the resealable bag and install it directly into the engine!