Koso's High-flow oil pump for Honda GROM® is strongly recommended for those who upgraded their engine. The addition of this high-quality part will increase the oil flow by 20 ~ 40%; which is a very effective modification that will help prevent engine failure. Keeping the engine lubricated and cool is very important; whether you ride for fun or for races. High-flow oil pump for Honda GROM®. Note: This is an aftermarket part built for racing purposes ONLY. Koso is not responsible for any damages caused to the parts, vehicle, or to yourself and others. Engine parts are not under warranty nor is collateral damage or cost of labor, in cases of malfunction.