HIFLOFILTRO OE Replacement Air Filters HIFLO air filters are manufactured to fit the factory air box and are a direct replacement for original equipment (OE) filters. Developed for modern high performance engines. Manufactured to fit factory airbox. Direct replacement of original equipment manufacturer's (OEM) filter. No need to change carburettor jets or settings. Top quality powerflow filtering media. Fits: Yamaha MT03 2008-2012 XT660 R 2004-2015