Amazon.com: KAJIMOTOR Motorcycle 51mm Universal Exhaust Muffler Pipe Insert Baffle DB Killer Silencer Muffler Assembly Insert DB Defender DB Killer Silencer : Automotive
Amazon.com: KAJIMOTOR 38mm Motorcycle Exhaust Pipe Muffler Silencer Plug Baffle Insert Mesh DB Killer 1.49in Noise Eliminator Sound Eliminator For Most of Mototcycle Street Sport Scooters : Automotive