Yoshimura exhaust control valve canceller for R-11/R-11Sq

Yoshimura exhaust control valve canceller for R-11/R-11Sq

Require when using following full systems and STD ECU together.
Street Sports Full System R-11Sq GSX-R1000 L7
Street Sports Full System R-11 GSX-R1000 K9-L6
Street Sports Full System R-11 GSX-R600 L1- *Required only L3- models*