This product is designed for use with both the Slip-On Line (S-K6SO7-HZC/1 and S-K6SO7-ZC) and Racing Line (S-K6R11-RC/1) exhausts when the passenger foot-pegs are removed. It is produced in-house using high-quality hand-laid carbon fibre and is easy to install.If passenger footrest are removed this optional carbon fibre muffler bracket is needed.