K&N Street Metal Intake System Shaker for 2017 Harley-Davidson TouringK&N Street Metal Air Intake Systems for Harley Davidson Dyna, Softail, Touring and Twin Cam Model motorcycles increase power by eliminating the restrictive stock OE air cleaner and replacing it with an oversized K&N High Flow Air Filter and a cast aluminum high volume aluminum housing. K&N high flow intake systems give your Harley an aggressive appearance while providing a significant increase in airflow resulting in more power. This Part Fits: Year