To build up the muscle power of the BMW M4, AC Schnitzer has provided a performance upgrade containing of an additional control unit which increases the performance from 431 to 510 hp, and from 550 to 645 Nm. Scope of delivery of every AC Schnitzer performance upgrade includes always a two years guarantee which can be upgraded up to three years.

After a visit to the Aachen workshops, the powerful energy combustion developed with the AC Schnitzer "Efficient Performance" know-how is also revealed in the exhaust of the M4. The AC Schnitzer silencer with valve control, with and without sound pipe (export version), with two "Racing Evo Carbon" tailpipe trims in right/left combination or with two "Sport" tailpipe trims on each side, provides the sound which makes the heart of every tuning fan beat faster: power and sporting performance in its purest form.

And what can't be heard must be felt. With the AC Schnitzer suspension spring kit (lowering by around 25-30 mm at the front and 10-15 mm at the rear), or with the racing suspension adjustable in compression and rebound, including lowering of 30-40 mm at the front and around 30 mm at the rear, it's clear to every sporting M4 driver that the true racing feeling can only come from Aachen. And that it can be enhanced by choosing products from the aerodynamic package at any level:

The basis for the aerodynamic pack is the carbon front spoiler elements, which can be fitted both individually and as a basis for the racing bodykit.

In stage two, the carbon front spoiler elements are supplemented by the new AC Schnitzer racing front splitter. This further improves downforce on the front of the M4 and ensures a better track position.

The final version of the AC Schnitzer front aerodynamic pack for the M4 includes the carbon front side wings. These are mounted on the front skirt in pairs on the right and left (4 pieces in the set). This arrangement improves air flow along the vehicle sides, further optimizing downforce on the front axle.

More BMW M4 photos:

2015 M4 Cabrio
2015 M4 Coupe