Smooth Stage 1 Big Sucker™, Black Fitment:99-17 Twin Cam (Exc. FBW) removing the carb multiple times

removing the carb multiple times to swap jets of make needle adjustments

Our friends over at The Speed Merchant are always coming up with great products

Designed for custom applications requiring different than stock lengths

Precision die-cast formed aluminum bucket

Smooth Stage 1 Big Sucker™, Black Fitment:99-17 Twin Cam (Exc. FBW) removing the carb multiple timesBig 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 Smooth Stage 1 Air Cleaner Cover Increases Horsepower & Torque Patented Hidden Breather Technology Pre Oiled & Synthetic