Kat-Ersatzrohre für Giannellli Silencers für Suzuki GSR 600 Baujahr: 2006 Mid pipes and header pipes are the most important part of an exhaust system. Not only are they the connection between the engine and the silencer, but it is the mid-pipe and especially the collector that determine the performance of the exhaust system. The silencer is meant to keep the noise down, but the collector and the mid-pipe determine the flow of the exhaust gasses and the shock waves, and thus the way the engine breathes. And if the engine breathes well - just like an athlete - the engine pulls like a rocket. Hersteller-Nr.71137IN