Yoshimura RS-12 Exhaust Sound Insert | INS-30-K. Replacement Yoshimura parts and packing keep your Yoshimura exhaust performing at its peak performance.Replacement Low-Volume Insert Kit for RS-12 MufflersNon-Spark ArrestedAvailable as optional kit on applications requiring different sound restrictionsDecibel reduction depends on application http://cdn.wpsstatic.com/images/full/42c4-5e5fce4e0bee1.jpg- Yoshimura RS-12 Exhaust Sound Insert | INS-30-K.
Yoshimura RS-12 Exhaust Sound Insert | INS-31-K. Replacement Yoshimura parts and packing keep your Yoshimura exhaust performing at its peak performance.Replacement Low-Volume Insert Kit for RS-12 MufflersNon-Spark ArrestedAvailable as optional kit on applications requiring different sound restricti... - Yoshimura RS-12 Exhaust Sound Insert | INS-31-K.