JB4 for Mercedes-AMG C63 / E63 / GT / GLC 63 V8

Tuning Mercedes-AMG M177 / M178

JB4 connects to turbo-V8 sensors and adjusts boost, fueling and timing alongside the factory ECU. Burger lists up to 100 whp and 100 wtq for AMG applications; results depend on engine, fuel, map and test conditions.

Maps and operating data

The included JB4PRO adapter and app support multiple pump-fuel and E85 maps, CANbus monitoring and logging. Parameters help you monitor the engine under load. Use a map intended for the octane and model.

Fitment

For listed Mercedes-AMG C63/C63S 2015+, E63/E63S 2017+, AMG GT/GT S/GT R 2015+, GLC 63/63S 2015+ and AMG GT 63/63S 2018–2021 applications. Verify engine code, year and trim.