They replace removable originals or are installed where none exist, providing an actual exhaust noise reduction of approximately 10 dB. They can be wrapped in special fiberglass sheets to further dampen noise. Made entirely of steel. Compatible only with 4-1/2” mufflers. Made in the USA. Price per pair.
Steel silencer inserts with protective galvanized finish and coated with Hi-Grade glass fiber.Also suitable for Vance & Hines Shortshots and Sideshots exhausts
Manual control via a multi-level selector: easily control your motorcycle's exhaust sound using the adjustable lever.The 51mm valve has only 4 holes.Includes all necessary mounting hardware and requires no cutting, welding, or other fastening.
Catalytic converter insert to reduce harmful engine exhaust emissions.Specifically, uncomposed hydrocarbons, carbon monoxide and nitrogen oxides are converted into carbon dioxide, water and nitrogen.
Steel Quiet baffle insert with DB Killer and catalytic converter to reduce engine noise and harmful exhaust emissions.They can be installed between the manifold and the exhaust tip.
