Arlen Ness, Stage 1 Derby Sucker air cleaner kit, Black, Matte

- Black anodized billet backing plate
- Without end cover
- Takes any 5-hole Twin Cam derby cover as end cover
This 'Derby-Sucker' will take any stock or custom Twin Cam 5-hole derby cover as outer cover, giving styling virtually endless options.
The best and simplest performance air cleaner kit for your bike... period.
Gain up to 21% horsepower by simply installing a Derby Sucker™ kit on your intake.
The Derby Sucker aluminum one-piece backing plate features a radiused inlet to optimize airflow.
The built-in breathing system features hidden channels to prevent the use of unsightly exposed breather hoses and fittings.
Note: See 959805 for the replacement air filter element.
Note: An optional rain sock is not available for Derby Sucker air cleaner kits.