RSV4 EVO ExhaustThe combination of race proven, lightweight materials, exceptional production quality, perfect design, amazing sound, and top performance makes this exhaust a must have for discerning riders that demand the best. It is constructed with a carbon fiber muffler outer sleeve and end cap, with a fully titanium link pipe and inner muffler structure, matched to high grade titanium alloy for the headers and collectors, resulting in a full system that is 44%