Universal Motorcycle Exhaust Catalyst Insert Kit with Removable DB Killer

This motorcycle exhaust catalyst kit combines a catalyst insert with a removable DB killer for compatible exhaust assemblies. It is available in sizes from 35mm to 60mm, including 35mm, 42mm, 45mm, 48mm, 50mm, 53mm, and 60mm options. The kit is made of metal and includes the catalyst insert and DB killer only; the exhaust pipe and muffler are not included. Confirm the exhaust inner diameter before ordering.