The Extremo exhaust pipe is delivered equipped with a special kit of screws and a key, that make installation of the exhaust pipe muffler easy and fast. The Small series comes with holes and simple screw threads.

Welded versions can be supplied on request (without screw holes), or with a key fastener, at an additional cost.
Before buying the exhaust pipe it is necessary to verify the diameter of the end part of the muffler to make sure the fit is compatible.