
Big Sucker Slot Track Air Filter Kit – ARLEN NESS. Manufacturer reference: 50-839.
This Stage I Big Sucker kit offers a neo-retro look and reworked intake flow for Sportsters. The rear plate is machined from a single block of aluminium (CNC) with a Slot Track design and a glossy black finish, providing a neat aesthetic and discreet integration on the original covers. The breathers are concealed and sealed with O-rings at the cylinder heads and injector/carburettor outlet, avoiding the need for additional hoses.
Ideal for roadsters and Sportsters looking for an ARLEN NESS style air exchanger, this kit combines a neat finish and simplified installation while maintaining a clean integration of the breather.