Skull High-Flow Air Cleaner Intake Filter Kit For Sportster XL1200 XL883 2004-22. Type:Skull High-Flow Air Cleaner. Unique skull design adds a bold, custom look to Harley bikes. Sleek black/silver finish enhances visual impact. Built with aluminum alloys for durability. Resists corrosion and keeps your motorcycle anti-aging. Smooth air intake reduces engine strain, improving acceleration and power. Built-in filter blocks dirt without influencing airflow. Hassle-free installation, no bike mods needed. Durable, Easy Installation, Scratch-Resistant.