Big Sucker™ Stage I Air Filter Kit - Chrome Pleated Molded memory foam pads conform

Molded memory foam pads conform to all body shapes and provide air circulation channels for optimal comfort

so the fit is perfect

Differential Bore

Requires OEM/Harley-Davidson Ventilator® oval backing plate

Big Sucker™ Stage I Air Filter Kit - Chrome Pleated Molded memory foam pads conformBig Sucker Stage I Air Filter Kit Chrome One Piece aluminum backing plate with hidden breather technology Each hidden breather 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 Radius air inlet provides maximum performance by providing unobstructed airflow All necessary hardware and instructions are included Pre Oiled high performance