BMW E46 ///M3 Flash 99-06
The Midnight Tuning Solutions performance flash tunes the computer for a approximate gains across the entire power band as well as a smoother ride and improved MPGs. Adding a performance flash is still the easiest, most cost effective way of increasing your BMW’s performance with NO downsides. 91 octane fuel is required. Your DME/ecu requires a FLASH not a Standard replaceable chip so you must ship your DME/ECU to us.