103 SPX/RCX (ref: 187107)
The ER1 silencer is a reference since its release. It's a derivative from the competition model, which then has all the expertise of the circuit, but being road approved. It is made of a 12/10th rolled and welded steel with a high temperature varnish. The exhaust can perfectly be installed on a floating model, thanks to his ball joint at cylinder exit and its connecting rod on silentbloc. There are three colours: varnished body with polished or carbon silencer, and chromed body with polished silencer. It is EC road approved.