Off-road bikes are subject to constant improvement: powerful, light, compact. This drove Arrow to design and develop a range of exhausts for this market, keeping clear in mind the needs of professional and non-professional off-road riders. Years spent working hard with top-level race team all over the World made it possible to design an exhaust range, named Off-Road Thunder, with all the features of lightness, durability and performance that are the basic qualities of any Arrow exhausts. Diamond-shaped section, sort of trademark for Arrow, ensure a perfect balance between internal volume and external dimensions: the silencer endcaps are designed to create a perfect mix with the silencer shape, following the requirements stated in race rules. Off-Road Thunder systems are available as a slip on and are very easy to fit. The silencer is available in titanium and aluminum, very light and with really good performance.