The BMC Air Filters Motorcycle Replacement Filters FM01140 are high-performance air filters designed specifically for motorcycles. These filters are made with a multi-layered cotton gauze material that provides superior filtration and airflow, resulting in increased horsepower and torque. The filters are washable and reusable, making them a cost-effective and environmentally friendly alternative to traditional disposable filters. They are designed to fit perfectly into the stock airbox of most motorcycle models and come with a pre-oiled coating for easy installation. With the BMC Air Filters Motorcycle Replacement Filters FM01140, riders can expect improved engine performance and extended engine life.