NCY GY6 150 Performance Cylinder Kit 61mm 170cc Yamaha OEM Utilizes your stock rubber cone

Utilizes your stock rubber cone

Each of these K&N Air Filters has a flat spot that takes the full impact of air and does not flow it directly into the intake properly

It includes 12 sets of 3 rollers with a total of 36 roll weights

Each component requires a specific degree of quality to keep the bike running long term in good condition

NCY GY6 150 Performance Cylinder Kit 61mm 170cc Yamaha OEM Utilizes your stock rubber coneNCY GY6 150cc Performance Cylinder Kit is a 61mm (170cc) that gets you some serious power. If your stock 150cc GY6 isn't cutting it anymore and you want that extra kick, jump on this 61mm, 170cc big bore kit. This cylinder kit is a very nice quality cylinder designed for high performance capabilities. It will efficiently maximize performance, however, we do recommend replacing the head as well. Some heads may not fit, please be sure to double check