Arlen Ness 18-754 Knuckle Stage 1 Big Sucker™, Black girls onesie one pair is Grey &

one pair is Grey & White

the Eda has a full length inside zipper for comfortable convenience

Extremely stiff under stress ensuring precise and consistent braking performance

8-12 hp increase over stock exhaust on stock bikes when properly installed

Arlen Ness 18-754 Knuckle Stage 1 Big Sucker™, Black girls onesie one pair is Grey &Arlen Ness 18 754 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