Here the muffler GIANNELLI for 50cc bikes with gear box APRILIA MX 2002 to 2004 and 1999 to 2004 RX, so with minarelli am6. With aluminum silencer and carbon choices, his body rolled welded racing, this will exhaust resonance and melodious sound. Couple, light body, noise ... its design and finish are very good! Delivered complete, this pot is aesthetically very racing! This pot is approved and issued with certificates curbed, however if a change is made to obtain more performance, certification is no longer valid. Photo and more complete description coming soon.