Lextek Carbon Fibre SP9C 300mm Exhaust System with High Level Link Pipe for Yamaha MT-09 (21-24) by Lextek.
Motorcycle exhaust pipes are fitted with silencers at the end to reduce the noise from the engine. The silencer attached at the end of the exhaust pipes causes the gases to expand so that any noise is expelled. The linings and perforations in the silencer also help lower the volume of the engine.
