Yamaha YZF R1 1998–2002 Viper Exhaust Connecting Link Pipe BD10686 which means that they are

which means that they are always fully in contact with the brake disc

big downpipe made up of 5 segments

- Twin sparks on each revolution also burns the waste gasses still in the cylinder

This kit is a design of Mark Broadhurst for fast road use

Yamaha YZF R1 1998–2002 Viper Exhaust Connecting Link Pipe BD10686 which means that they areViper Connecting Link Pipe for Yamaha YZF R1 '98 '02 Single pipe kit Designed for use with Viper exhaust cans Refer to the Model Fitment tab for specific compatibility The Viper connecting pipe is designed to link your Viper exhaust can to the motorcycles standard downpipes, ensuring a precise and secure fit.