Motorcycle Honda Kawasaki Suzuki Yamaha SYM 54mm Chrome Power Air Filter 4pcs Increase airflow,Adds up 2 to10 horsepower depending on your adjustment. Universal conical filter and clamp Strong - pliable rubber flanges Inside Diameter : 54 mm , Overall Height: 3.1" , Outside Diameter at Widest Point: 3" , Outside Diameter at Top: 2" Package Content :4pcs / set