The evolution of off-road motorcycle, become increasingly powerful, lightweight, compact and rigid led Arrow to the development of a dedicated line of discharges dedicated to the segment, designed taking into account the special needs of new and off-road riders. The characteristics of lightness, reliability and performance, always been proud of Arrow exhausts are enriched, in the Off-Road Thunder online, the experience gained through years of development, and victories, the world tracks motocross and enduro. The rhomboid shape, a true trademark of Arrow Factory, provides an excellent compromise between internal and external dimensions and size is directly attached to the endcap profile, designed to fulfill the requirements imposed by the race regulations. The Off-Road Thunder is available in slip-on versions or complete kit with Arrow manifold and is easy to install. The outer body of the silencer is made of titanium or aluminum, it is extremely light and its performance make it a top of the range.