JB4 Performance Tuner for Mercedes-Benz C63, E63, GTS, GLC, Including S model

Power gains of up to +100whp and +100wtq to your AMG AT THE BOTTOM YOU WILL FIND IF THIS FITS YOUR MAKE AND MODEL! The JB4 is simply the most powerful and feature-rich tuning system available for your AMG. Using the same technology as our advanced tuning systems for the BMW M3 and M5 models, our new AMG C63 system delivers factory smooth performance increases in a package that can be installed or removed in under an hour. The JB4 includes many features not found on other competitive AMG tuning products including:Fuel control to ensure safe operation at higher power levels. CANbus allowing the JB4 to monitor and integrated advanced engine data for unparalleled perforation and safety. Performance maps for pump fuels, E85 mixtures, race fuels, WMI, and even a lower than stock performance VALET map, all selectable on the fly via the optional JB4 mobile phone app. With JB4 Mobile you can also datalog to your phone, enter setting or custom map changes, update the firmware to unlock new feat