+2mm larger throttlebody for the MY12-16 Honda CRF250L. The addition of this bolt on allows up to +12% more airflow to your engine! This part is OE on the MY17-20 CRF250L, CBR250/300, and MY21+ CRF300L models. This throttlebody is a key component to how the original CBR250R and the MY17+ CRF250L creates more brake horsepower than the original MY12-16 CRF250L. To install, simply swap the sensor pack and idle air control valve from the your OEM throttlebody and install onto this new core. The rest is plug and play.
This bolt on requires new engine mapping to run properly, please check out the tuning section for the MY12-16 CRF250L for supporting tunes.