Koso Throttle Body for Honda Grom / monkey (port and polish optional)

As the throttle body and intake manifold are used to control the amount of air flowing to the engines combustion chamber, they are important elements of the intake system. Using Koso's 34mm Throttle Body in conjunction with Koso's 30.5 to 34mm Intake Manifold (DP623001) will give a better air/fuel mixture for a quicker throttle response.

ported and polished koso throttle body  is also available