Custom tuning for your 2024-2025 S650 Mustang GT and Darkhorse.  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, Ghost Cam, 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, Ghost Cam and Pop-Flame (AKA Burble) on all fuels.