Honda CRF250 2013-17 CRF450 2013-16 Twinair Iboost throttle body power flow kit
NEW TWINAIR IBOOST POWER FLOW THROTTLE BODY INSERT. CRF250 2013-2017. CRF450 2013-2016. For better top-end throttle response (90-100% open throttle position), use the kit’s larger butterfly valve without the sleeve.