The BMC Air Filters Air Filter - FB11701 is a high-performance air filter designed for use in automotive and motorcycle engines. This air filter is made from a multi-layered cotton gauze material, which provides excellent filtration and airflow. It is designed to increase horsepower and torque while also improving fuel efficiency. The FB11701 is washable and reusable, making it a cost-effective and environmentally friendly option. It is compatible with a wide range of vehicle makes and models and is easy to install. This air filter is a reliable and durable choice for those looking to upgrade their engine's performance.