K&N Replacement Air Filter Thunderbird 1600/1700 '10–'13 S3-Size-48 Emergency quick release cheek pads

Emergency quick release cheek pads

held in place with three Velcro straps

520VR46120S

1 on the inside)

UNU-4134ST

K&N Replacement Air Filter Thunderbird 1600/1700 '10–'13 S3-Size-48 Emergency quick release cheek padsK&N's high flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle. Features: Designed to provide increased horsepower and torque. Pleated media provides a large filtration area, offering long service intervals. Multiple