This straight reducer is a GT2i fluorinated silicone hose specially designed for gasoline.
Selectable diameters: 51-40, 51-45, 57-45, 57-38, 64-51 and 51-38mm
Products intended for vehicle modification for competition purposes may render their use prohibited on public roads, insofar as they significantly alter the vehicle's characteristics as specified in the type-approval certificate issued by the relevant authorities (noise level, pollutant emissions, maximum speed, tire dimensions, etc.).