It's here! The RS-12 for the 2019-20 Yamaha YZ250F!After over three years in development and testing we are pleased to announce our RS-12 is here for the Yamaha YZ250F! With the help of incredibly talented factory...
It is EC/ECE type-approved. No remapping is required and it is easy to fit.Catalytic converter is included within the system.FITMENT NOTICE: This product can not be mounted in combination with optional Yamaha engine...