The upgraded transmission is pictured along with the beefy looking front differential necessary for the all wheel drive sitting under the motor. The transmission responsible for handling all the torque and sending it to all four wheels also just looks huge in these photos. The front driveshaft also appears to be a stout piece. AMG clearly displaying this all wheel drive system is not an afterthought, it is very well thought out and engineered.
The turbo manifold is also on display showing how it feeds directly into a sizable cat. Downpipes on the M157 no doubt will provide large gains essentially if the upstream cat is eliminated.
Enjoy the photos, courtesy of Benzboost premier vendor Renntech.