Custom tuning for your 2024-2025 S650 Mustang Ecoboost.  This includes custom tuning with Our RTD4 on the HP Tuners platform (Full package in the drop down, which includes 91 or 93 Oct Street/Track tune, fuel milage, Pop/Flame and all of these tunes on E85 or Race Fuel). 4 credits needed and our RTD4 device or as Multitune (**TO GET MULTITUNE SWITCH ON THE FLY FROM THE CRUISE CONTROL ON THE STEERING WHEEL YOU MUST SELECT MULTITUNE IN THE DROP DOWN**) on our PCMTec platform with the OBDX device and 10 credits needed.  Tunes included on either package include:  91-93 oct & E85 Street/Track, fuel milage and Pop-Flame (AKA Burble) on all fuels.