Built for performance and show, the Typhoon�® Air Intake System is a free-flowing mandrel-bent aluminum tube induction system. Each kit is proven on a rear-wheel dynamometer to increase horsepower and torque. They come with an oversized High-Flow conical air filter designed to provide increased surface area and dust capacity. This extra surface area 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 oversize air filter also captures more dirt increasing the service life before a cleaning is required (up to 100,000 miles).