An exhaust system with intelligent valve control. Rent a BMW X4 with D Cars Barcelona.
The distinctive exhaust system fitted to the new BMW X4 M40i is unmistakable with tailpipes on both sides finished in fine Chrome Black.
The radical technical changes include, in addition to intelligent valve control, a back pressure-optimized double-flow exhaust system fitted beneath the floor of the vehicle, as well as resonator tuning specific to M Performance.
The result is a charismatic sound, individually determined by the driver depending on driving mode and driving situation, perfectly emphasizing the car’s sporty character acoustically.