Performance Tune for E39 5-Series (1996-2003)

This is our tried and tested tune for an E39 5 Series with an M52/M54 engine. These tunes were designed on a Dynojet dyno and tested in the real world! All OBD2 tune packages come with an OBD to USB cable and software to read and write your DME/ECU. A Windows computer is required to utilize the RK-Tunes flash software. Check FAQ section for windows device recommendation. KEY FEATURES:⦁ Top speed governor removed⦁ Increased RPM rev limit⦁ VANOS cam timing adjustment⦁ Improved throttle response⦁ Multiple fuel octane rating settingsPERFORMANCE SPECS:8-20+ WHP8-20+ FT/LBS TQIn the modification box, please specify all current vehicle modifications and desired options.