Pre-filter/rain sock which fits all RSD Nostalgia velocity stacks. Its uniform micron openings allow air in while keeping debris and water out.

The S&S Super E and G carburetors are specifically designed for Harley-Davidson Big Twin and Sportster engines. They feature adjustable accelerator pump for instant throttle response at any rpm. The ejector nozzle is located in line between the main discharge tube and the butterfly for undisturbed air flow. With the rider in mind the idle mixture screw has been angled for greater accessibility even with 5 gal. gas tanks. The enrichment device also was refined with a large variable position lever attached to the air cleaner backplate where it is easy to operate even with thick gloves. The throttle spool assembly is designed for later style two cable pull open - pull closed throttle. Cables are not included and must be purchased separately. Following the tradition a teardrop shaped air cleaner has been retained but it was redesigned to reduce the installed lenght of the carb assembly. The new filter element has 19% more filtering area and combined with other design changes makes up to 14% more flow. S&S Super E & G are approximately 40 mm shorter than Super B carbs and provide easy clearance for Fat Bob tank applications and good rider comfort.
The Super E carburetor has a 48 mm throat and is recommended for use on any Big Twin and Sportster engine with stock displacement or big bore/stroker lower ends, aftermarket exhaust systems and cams.

These high flow velocity stacks for Evolution and Twin Cam models are made from CNC-machined billet aluminum. They include the RSD backing plate with breathers, screen and mounting hardware.

Compilation of the parts which are required for the installation of custom air cleaners.