K&N 57 Series kits start with the largest conical shaped high-flow air filter able to fit into the engine compartment while using factory holes and mounting points. This extra filter size provides even more airflow at lower restriction than a standard K&N O/E replacement filter that is limited to the size of the factory air box. The oversized air filter also captures and holds more dirt increasing the service life before a cleaning is required (up to 100,000 miles). When possible, the filter is isolated from high engine temperature by a heat shield designed to lower the temperature of the air entering the engine, which increases horsepower. The filter is then attached to a rotationally molded tube made from interlaced High Density Polyethylene (HDPE). This process shapes the tube to reduce turbulence and accelerate airflow into the engine. Finally, the tube is connected to the engine with adapters made from high-strength materials, such as silicon and reinforced nylon, and ensures long life.
For more information, visit www.knfilters.com.
