Arrow 71392MI Stainless Steel Racing Collectors for Honda CBR 600 RR 09-12Arrow Exhaust Headers Honda CBR600RR Not all exhaust pipes are made equal, the Arrow Exhaust Header bears all of Arrows experience accumulated from world class racing. That experience has lead Arrows to fine tune each part of their design and manufacturing processes. Everything from pipes diameters, sections bends, components, welding and layout are carefully tested to produce a product with high performance, reliability and last but not least, good