Urban Exhaust Maxi Scooter - ARROW URBAN EXHAUST - Shorter silencer with Race-Tech diamond shape - Completely re-engineered interiors with new silencing system - Swing-arm mounts welded to silencer body, eliminating the adapting plate - Racing” header with optional catalytic converter - Available in stainless steel with black painted cover or in aluminum, with transparent or “dark” finish - Rear endcap with matt black finish - A good weight reduction - Removable dB-Killer - Street legal - IT IS NECESSARY TO COMBINE COLLECTOR PART # AND SILENCER PART # (ASSEMBLY IS ONLY FOR FULL SYSTEM) - CATALYTIC CONVERTER TO BE USED WITH SILENCER + RACING COLLECTOR