2.5 inch Velocity Stack for S&S Super E/G Carburetor Makes_Norton They are designed for use

They are designed for use on 18 - 22 and amp systems

plus custom applications (Not for use on Narrow Glide front ends or FX models

Triumph motorcycles 1969 & up

Fit all Drag and most H-D sissy bars

2.5 inch Velocity Stack for S&S Super E/G Carburetor Makes_Norton They are designed for useIf you are looking for maximum airflow for your S&S Super E G carburetor, this is the way to go. Made in the USA and a perfect fit for their carbs, these velocity stacks, sometimes known as air horns, come with everything you need to install it. Kit includes: air horn, three mounting screws, carb support bracket (bracket connects the center crankcase bolt to the bottom manifold carburetor mounting bolt), two longer bottom carb to manifold mounting