This CDI is most commonly used on 150cc, 200cc and 250cc GY6 format ATVs, dirt bikes, scooters, buggies, go karts as well as other powersports and mobility machines. This is a peformance CDI made in Taiwan at the same specialty factory as our Polaris Ranger performance CDIs. Most commonly (but not exclusively) used on 150cc scooters providing better timing, a stronger spark and overall increase in engine performance. 1x2pin connector(white) + 1x4pin connector(white). Casing is L-9.1cm x W-5.5cm x H-2.2cm. Stronger spark, more consistent timing, reduce electrical and engine wear.