Heavy Breather Extreme Air Filter – Engineered for Peak Performance. Experience 42% greater airflow compared to traditional Heavy Breather filters with our extra-large Heavy Breather Extreme Air Filter. Designed for high-performance engines, this filter delivers unmatched efficiency and power. Sleek Finishes: Choose between Black or Chrome to match your style. Optimized Airflow: the round-to-oval transitioned tube improves leg clearance and delivers unrestricted airflow to the throttle body. Air Effect: At speeds over 60 mph, the filter captures air from the front, compressing it through a narrower section to boost performance-enhancing torque and acceleration beyond standard Ventilator and Round High-Flow Filters. High-Performance Ready: Supports large-displacement engines with clean air for outputs exceeding 150hp. Durable & Washable: The water-resistant filter is reusable and easy to maintain. Premium Construction: Features a cast aluminum intake tube and back plate for durability and longevity. Upgrade your engine’s performance with the Heavy Breather Extreme Air Filter-where power meets precision. (except models equipped with Fairing Lowers and 2023-later FLHXSE and FLTRXSE, 2024-later FLHX, FLTRX, and FLTRXSTSE, and 2025-later FLHXU and FLTRXRRSE). Does not fit models equipped with Fairing Lower Glove Boxes, Fairing Lower Speakers or Road Glide Fairing Spoilers.