Hydro Tec has been offering ECU programming for over 10 years and are the Yamaha experts. We are available to answer your questions and help you with setup and props. We offer same day service if using UPS. Your ECU is tested on Hydro Tec's simulator before shipping and is cleared of the codes that are displayed when it is flashed. It is also tested for proper programming. We also offer in-house Yamaha Warranty and service of all Yamaha outboards for over 30 years! We take all major credit cards. Tell one of our representatives that you read this on BBC and receive 10% discount on your ECU flash.