This is the high performance heavy duty super OZ magneto that you have been hearing about. It has a larger winding of thicker wire than the standard 2 stroke magneto. This allows it to produce a higher voltage at a higher current for top quality spark. This enables the capacitor in the CDI to charge more quickly and to a higher voltage. The result is that the CDI will then produce a larger, healthier, cleaner, and more consistent spark. Get quicker starts, stronger spark, and more consistent power. Don't worry, the OZ magneto is super easy to install. This is a must have item for any serious 2 stroke motorized bike enthusiast.