Performance Machine Rain Sock For C4 Carbon Air Cleaner Don't let wet weather put a damper on your ride. The Performance Machine Pullover Rain Sock for the C4 Air Cleaner is the perfect ally against rain. Crafted to snugly cover the high-flow filter of the C4, it stops water ingress while ensuring air continues to flow freely. Its adjustable elastic opening promises a tight fit, offering peace of mind no matter the weather conditions. Features: Designed specifically to protect Performance Machines new C4 high-flow air cleaner Fine mesh screen repels water while maintaining optimal airflow Elastic opening ensures a snug fit, even in high winds and rough conditions Easily folds up for storage in your bag or saddlebag for on-the-go protection