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. GP PRO, manufactured by semi-handmade TIG welding, shows a compact and essential design and an aggressive sound. Inspired by the world of competition, the exhaust pipe is equipped with a removable protective grille that hides the dB-killer. This muffler sports the characteristic Mivv logo created by laser technology. It features a central body in black stainless steel with a brushed “Black Satin” effect, obtained with a special colouring process that provides a more aggressive look to the silencer. EURO3/EURO4 Approved only when catalyst is installed - not included. Muffler finish: Steel Black Gas approval: ECE approved if optionally catalysed (Euro 3/Euro 4) Homologation: CE homologated Horsepower benefit: 0.60 Noise approval: ECE approved (Euro 3/Euro 4) Catalytic kit: requiert le catalyseur ACC.046.A1 Position: Standard level Weight benefit: 4.30