Designed for riders that demand maximum performance from their motorcycle Significantly lighter compared to the stock exhaust system and features exceptional production quality, hi-tech materials, and of course increased engine performance Pure racing sound output Different than the standard Evolution system Headers include crossover and feature a different layout for a bigger race radiator Link pipe does not contain fixing points for stock heat shield Mufflers do not include db killers Heat shields on the mufflers are made for racing Mufflers do not accept stock heat shields Cannot be mounted with stock fairings. EXHAUST EVO2 KIT CF YZFR1