Big bore engines for the Honda Grom 125 will require a larger throttle body so that your engine can perform and run optimally. Koso 34mm Throttle Body will do just that! Perfect for the displacement of 180cc and higher! Throttle body does not come with any sensors, so swapping over the sensors from the stock throttle body is required. Koso Large Intake Manifold is required, the 34mm throttle body will not work with OEM manifold.
**NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES**