Bring your bike to the next level with the incredible Arlen Ness Big Sucker Stage 1 Air Filter Kit! This all-inclusive kit includes everything needed to upgrade, including a top-of-the-line one-piece aluminum backing plate. Designed to be both efficient and reliable, this kit stands apart from the competition. Hidden breather technology optimizes airflow straight down the throttle body in order to get maximum power and acceleration. The included smooth radius air inlet increases airflow efficiency is sure to take your ride up a gear or two. With increased reliability and performance, you'll be sure to love these upgrades! Bring home the Arlen Ness Big Sucker Stage 1 Air Filter Kit today for unmatched excellence.