Features: 1.A brand new performance racing CDI fits for most of most GY6 or GY6 Clone engine 50cc-150cc, 150cc Go Kart engine, 150cc Dune Buggies engine, ??150cc Buggies engine 2.This AC fired CDI will eliminate rev-limit which keeps your bike restricted, and also reset your ignition advance curve for better acceleration 3.Made of high quality material, it is very durable and safe to use 4.This unit will give you 5-10 miles speed boost on your bike and all you need to do just plug it on 5.A good replacement for the old or broken one Specification: Features: A brand new performance racing CDI fits for most of most GY6 or GY6 Clone engine 50cc-150cc, 150cc Go Kart engine, 150cc Dune Buggies engine, 150cc Buggies engine. This AC fired CDI will eliminate rev-limit which keeps your bike restricted, and also reset your ignition advance curve for better acceleration. Made of high quality material, it is very durable and safe to use. This unit will give you 5-10 miles speed boost on your bike and all you need to do just plug it on. A good replacement for the old or broken one. Specifications: Material: Plastic, metal Color: As picture shown Type: AC Ignition Connection Type: 6 pin (2 pin + 4 pin) Weight: Approx. 105g Fitment: For GY6 or GY6 Clone engine 50cc-150cc For 150cc Go Kart engine For 150cc Dune Buggies engine For 150cc Buggies engine Package Included: 1 * CDI Note: Some models may use different parts. Please check the pictures and specifications for details before you buy. PackageList: