BMW E39 ///M5 Performance Flash 96-2003
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.
91 Octane Required
New Rev limit : 7400
Power increase +22hp
Power increase +17tq