Race inspired Grand National endcap High flowing baffle design Aggressive sound and excellent horsepower Removable dB reducer 4" outer diameter Made in U.S.A. Compatible...

For S&S A/B/E, Tillitson, Bendix and Keihin butterfly carburetors Increased airflow Eliminates the possibility of severe engine damage due to extreme lean conditions created by cracks in...

This bolt-in big bore kit is easy to install, and requires no machining or rebalancing. This is the largest bore (3.937") that can be fit in a stock engine case. Stock engine height is...

Big Bore kit yields excellent results with stock cylinder heads Stock engine height is maintained so there are no manifold or frame fitment issues Cylinders feature increased fin area for better...

Race inspired Grand National endcap design All hardware and gaskets included Deep performance rumble replaces stock whisper tone Removable dB reducer included Made in USA! Compatible...

Classic slash cut styling Aggressive sound Stripped down styling Show quality chrome Exellcent HP High flowing baffle design Economical price Excellent clearance on trike models Removable dB reducer...

Race inspired Grand National endcap High flowing baffle design Aggressive sound and excellent horsepower Removable dB reducer 4" outer diameter Made in U.S.A. Compatible...

Big Bore kit yields excellent results with stock cylinder heads This is the largest bore (3.937") that can be fit in a stock engine case Stock engine height is maintained so there are no...

S&S Cams are tested on the dyno, street and track before being offered to the public With hundreds of hours of testing on each cam, you know you are getting the best cam S&S can produce ...

2:1 styling for high-performance Baggers with deep performance exhaust note Increased power and torque Black stainless steel round muffler Black machined aluminum straight-cut end cap Stepped...