Trask Assault Charge High-Flow Intake Air Cleaner For Harley Built to stand out and engineered to perform, the Assault Series Hi-Flow Air Cleaner gives your bike a clean, aggressive edge. The clear plexiglass face and discreet breather system bring a unique modern twist, while the Trask snap-in velocity stack boosts airflow for real riding gains. Its a high-flow setup designed to deliver style and performance in equal measure. Features: Durable Cerakote industrial-looking finishes Dyno developed and tested Reusable and cleanable air filter Easy installation Made in the USA Note: Designed for 68mm intake manifold