GOOFIT 6 Pin AC Racing CDI Module for GY6 50cc-150cc ATV Scooter 4+2 pin,AC CDI Fit 4 stroke GY6 50-150cc engine, does not fit for horizontal engine or vertical engine CDI body is made of aluminum,It eliminates rev-limit that keeps your bike restricted and reset the ignition advance curve for better acceleration. You can get replacement or refund at any time if you are not satisfied with your purchase. Arrival within 1-2 days (Sold by GOOFIT and Fulfilled by Amazon),Arrival within 7-15 days (Ships from and sold by GOOFIT)