Hennessey has just released an engine upgrade package specifically for the Mercedes AMG 5.5 liter biturbo V8 engine that will that will take your vehicle from hot to nuclear with just a few additions. The package is called the HPE700 and it increases the engine’s output from the standard 550 HP to an impressive 700 HP - hence the name.
As of right now, this engine powers the CLS63, E63, S63, G63, GL63, ML63, and SL63 AMG. In order to obtain this impressive upgrade, the tuner performed an HPE air induction system modification, HPE engine management calibration, and Dyno tuning. The update will get a 3 Year / 36,000 mile limited warranty. After all these updates, the V8 engine delivers a total of 700 HP at 5200 rpm and a peak torque 800 lbs-ft at 3,800 rpm.[...]