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Koso 4-Valve Head 170cc Big Bore Kit MB623003 for Honda Grom Monkey 2014-2021
$1,194.43Important: Must use 91-94 octane Premium gas. To run correctly you will also need a high flow injector, injector adaptor, racing filter, connecting tube, intake tube, 34mm throttle body, high flow oil pump, iridium spark plug, ECU modification, fuel...DS01-1420$1,194.43