AKRAPOVIC P-HF1255 Sound Kit for BMW X3M (F97) / X4M (F98) 2020-2024 ymm_45 The system is split into

The system is split into two codes because of packaging requirements

the exhaust valves are controlled by the vehicle’s factory electronics

This makes for a linear and smooth sound in partial load when shifting gears

power: 327

9 LSU sensor in August 2014

AKRAPOVIC P-HF1255 Sound Kit for BMW X3M (F97) / X4M (F98) 2020-2024 ymm_45 The system is split intoThe optional Akrapovi Sound Kit enables owners of selected Akrapovi car exhausts to control the sound of the system from the cockpit of their machine. Using Akrapovi technology, drivers can easily switch between the quiet mode and a sportier sound. With the use of a receiver to drive the actuators that open or close the valves at the end of the exhaust system, drivers can use the Sound Remote Controller or the new smartphone app (for iOS and Android)