Air cleaners and manifolds are combined to form complete intake systems which reduce noise and exhaust emissions as well as fuel consumption, while increasing both engine output and torque.

To reach these objectives, the overall development responsibility must be in one hand. The technology of the future is based on variable intake manifolds that either improve combustion with the help of swirl or tumble flaps, or increase power and torque by way of resonance or variable-length oscillating pipe systems.

More and more, drivers are demanding a sporty engine sound, especially on high-performance vehicles. MAHLE is developing special sound
generators to this end.