Compact air cleaner kit with a reusable filter element and included mounting hardware for easy installation.
Active filters
Bolt-on high-flow intake assembly that improves throttle response and mid-range torque.
- Hidden-breather design vents at injector/carb mouth
- Radius inlet for unobstructed airflow
- One-piece backing plate with integrated breather paths
- Includes all hardware and installation instructions
Complete air cleaner kit that increases horsepower with no other changes. Includes cover, backing plate, filter element, and hardware. Made in the USA.
Replacement tear-drop backplate. Made in the USA. Sold individually.
Built-in stinger cone reduces turbulence and increases airflow. Kit includes backing plate, filter and hardware. Made in the USA.
High-flow, reusable cotton-gauze filter with snap-in velocity stack and billet aluminum backing plate with hidden breather. Dyno tested and made in the USA.
Assault Charge High-Flow Air Cleaner — reusable high-flow filter, snap-in velocity stack, plexiglass cover, made in USA.
High-flow, reusable air cleaner with snap-in velocity stack and integrated breather system; dyno tested and made in the USA.
- Increased filter area with radiused inlet and stinger cone for improved airflow.
- Includes back plate, filter element, top cover, hardware, and instructions.
- Cover sold separately; can be run without a cover or paired with an OEM-type 1999‑later Big Twin cover.
- EU-approved for legal use where applicable.
- Increased filter area for improved airflow
- Includes back plate, filter element, top cover, hardware, and instructions
- Cover sold separately; can be used without cover or with OEM-type 99-later Big Twin cover
High-flow Big Sucker™ air filter kit with pre-oiled, washable red filters, hidden breather technology, and all hardware included.