MIVV KT.025 KTM 125 / 390 DUKE ( 2021 / 23 ) Slip-on Exhaust "X-M1" ( black; approved)Slip on exhaust X M1 by MIVV for KTM 125 390 DUKE Designed to improve the aestethics, sound and performance of the bike, Mivv slip on exhausts are the result of maximum attention to design, with the aim of satisfying those who want to distinguish themselves by the look of their motorbikes. The Mivv X M1 line, the result of the experience gained in the MotoGP and Moto2 World Championships, is the perfect synthesis between racing style and performance.