arlen ness stage 1 big sucker air cleaner beveled for harley Model:18-22 Softail; 17-22 Touring; 17-22 Trikes - Air to fuel ratio

- Air to fuel ratio set range: On / Off

Without pre-drilled holes

- E24 *50R00/20*0338*00 approved for rear use

1981 KDX B1 420cc

arlen ness stage 1 big sucker air cleaner beveled for harley Model:18-22 Softail; 17-22 Touring; 17-22 Trikes - Air to fuel ratioBig 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 Beveled Stage 1 Air Cleaner Cover Increases Horsepower & Torque Patented Hidden Breather Technology Pre Oiled & Synthetic