Performance CDI Box - GY6/QMB139 - 49cc/50cc/125cc/150cc/232cc

If you are looking for a quick and easy performance upgrade, or just a reliability upgrade for your GY6 or QMB139 scooter, this is the answer. This Performance CDI box will change the timing curve of your engine, and remove the stock rev limiter. This will result in more power and a higher top speed. Side Note: Upgrading your CDI box isn't going to be a night and day difference, however the quality and reliability of this CDI box will be! This CDI box is an A/C CDI box. Please be sure your scooter is built with an A/C CDI. D/C CDI boxes are much larger. Generally, with a D/C CDI, the scooter's headlights will turn on when the key is turned, without the engine running. This CDI will fit all 4-stroke scooters from 49cc-232cc with a QMB139 motor or a GY6 motor. This will fit all: - GY6 engines (with A/C CDI)- QMB139 engines (with A/C CDI)- Genuine Buddy 125cc-150cc- Taotao 49cc-150cc (with A/C CDI)- SunL 49cc-150cc (with A/C CDI)- ALL Chinese scooters 49cc-232cc (with A/C CDI) PLEASE NOTE