100% Brand new and high qualit152QMI and 157QMJ based engines，It's 6pins，this CDI works with the GY6 type plug on it， with an AC ignition system. This CDI is similar to our orange performance CDI but has a more aggressive ignition advance curve. This is a performance CDI Racing CDI This CDI Box will eliminate rev-limit which keeps your bike restricted， and also reset your ignition advance curve for better acceleration， MUCH more than the popular orange compact units! Racing Coil: This coil will increase the spark， improve combustion and the overall electrical performance. Racing CDI x 1 Racing Ignition Coil x1