Koso's high performance ignition coils are designed using the most advanced materials on the market today. The stronger spark generated by the Koso ignition coil results in more horsepower, smoother...
KOSO 28mm Throttle Body (DY640000) for the 2021 and newer Honda GROM & Honda Monkey. As the throttle body and intake manifold are used to control the amount of air...
Koso Hurricane Racing Drop-In Replacement Multi Air Filter for Honda Grom MSX 125 (2022+). NOT AVAILABLE FOR SALE OR USE IN CALIFORNIA. Hurricane Racing Air Filter Want better...
Unleash the full power of your 150cc Big Bore kit by pairing it up with Koso's High Flow injector! Having the proper fuel for new performance upgrades is important! The...
The new KOSO performance camshaft for Honda Grom 2022+ will give you great results at high RPM. This camshaft can be used with a stock engine, but will even...
The new KOSO racing air filter cover for 2022+ Grom models is not only easy to install, but it will increase the airflow, improve filtering efficiency and raise the engine...
KOSO BIG BORE KIT 150CC - Honda Grom / Monkey 125 (2022+) with 5 Speed Transmission. Made from the best components available on the market, the 150cc Big Bore kit...
The new KOSO performance camshaft for Honda Grom 2022+ will give you great results at high RPM. This camshaft can be used with a stock engine, but will even...
