Compatible —— 6-pin CDI, suitable for most 125cc 150cc 200cc 250cc off-road motorcycles, scooters ATV.Enhance ignition intensity —— 6 pin cdi can Increase the ignition energy intensity for easy start and smooth driving.Eliminate the speed limit —— Apollo rfz 125 performance parts can Eliminate the speed limit, keep your bicycle in a restricted state, and reset the ignition advance curve to achieve better acceleration.Increase power —— This device will increase the speed of your bicycle by 5-10 miles.Easy to install —— Ac cdi box Easy to install, just plug in. Can directly replace the old or damaged.Product Description Features: 6 pin CDI for most of 125cc 150cc 200cc 250cc pit bike, scooter ATV. Increase Ignition energy intensity for easy starting and smooth riding. Eliminate rev-limit which keeps your bike restricted, and also reset your ignition advance curve for better acceleration. This unit will give you 5-10 miles speed boost on your bike. Easy installation,