The HKS Oil Filter improves oil pressure drop and flow properties by approximately 30% compared to current aftermarket sports oil filters. Most aftermarket sports oil filters assume the use of high viscosity oil; therefore, filter paper strength is prioritized while sacrificing absolute pressure loss properties. HKS Oil Filter has readdressed filter strength and overall structure to provide the oil flow that the engine requires and to pursue the HKS ideals in what is required from a sports oil filter.