Yoshimura Sound Insert Kit Alpha / Alpha T / R77 Muffler (Ins-35-K)Yoshimura Sound Insert Kit Alpha Alpha T R77 Muffler (Ins 35 K) Replacement Low Volume Insert dB Killer Kit for select Mufflers Available as optional kit on applications requiring different sound restrictions Decibel reduction depends on application Kit Includes: Low Volume Insert Tube End cap collar Set screw This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and aftermarket accessories not found on