K&N Oil Filter Kn-173 K&N Oil Filters cater to a wide range of needs, from the high demands of racers and engine builders to the practical necessities of the everyday motorcycle or Atv/Utv owner seeking optimum filtering. These filters boast a synthetic media capable of trapping 99 of harmful contaminants without compromising on oil flow rates. The inclusion of a 17mm nut on the 'wrench off' oil filters simplifies installation and removal, doubling down on convenience with a cross-drilled feature for easy safety wiring. Durability is a cornerstone of its design, with a robust canister and base plate to ward off punctures, complemented by a double-rolled seal and pre-lubed gasket to guarantee a tight seal. Features: Compatible with conventional, synthetic blend and full synthetic oils High-flow rate synthetic media filter Traps 99 of harmful contaminants Pressure relief valve and anti-drain back valve (where applicable)