Exhaust Full POLINI Evolution for Moto Spare Parts Accessories Pieces Spares

Polini Evolution Yamaha Bw´s 125 10-15 1902003 Not Homologated Full Line System. Products reserved exclusively for competitions in designated areas, in accordance with the provisions of the competent sports authorities.We assume no responsibility for improper use.POLINI EVOLUTION MUFFLER FOR YAMAHA BW´S 125 Polini presents the new EVOLUTION muffler for Yamaha BW1S 125 designed by the Polini racing department.Its features are aimed to achieve the best performance and to exploit at the best the power of the 158,3cc Polini cylinder kit improving acceleration and maximum speed.The new Polini Evolution muffler has a modern design.The specific inner shape of direct type increases the output curve enormously.The silencer, made of black anodized aluminum, distinguishes itself for the end part in carbon fiber.The stainless steel manifold has a compensation plenum chamber that increases the performance both at low and medium rpm.The sound is typical of the 4 stroke racing mufflers, while it´s 49