Knuckle Stage 1 Big Sucker™, Black Fitment:88-up XL Sportster AVAILABLE HERE:

AVAILABLE HERE:

Clean & compact design

Interchangeable TPV rubber grip sleeves available in Black

or just want to fill up that space when you're not using it

Made from 7075 T6 Aircraft Grade Aluminum

Knuckle Stage 1 Big Sucker™, Black Fitment:88-up XL Sportster AVAILABLE HERE:Big Sucker Stage 1 air cleaners are engineered and proven to give your engine maximum airflow for more horsepower & torque. The patented hidden breather backing plate is o ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system, eliminating the need for any external hoses or hardware Knuckle Stage 1 Air Cleaner Cover Increases Horsepower & Torque Patented Hidden Breather Technology Pre Oiled High