Torque has also been upped to a whopping 959 lb-ft of torque.
There’s something about Mercedes’ hi-po sedan that makes tuners want to crank up the performance as much as possible. German tuner Posaidon is the latest to get its oily hands on the E63 AMG, and after installing two new bigger turbos, a custom exhaust, and remapped ECU, the 5.5-liter twin-turbo V8 was boosted from 585 hp and 590 lb-ft to 853 hp and a monstrous 959 lb-ft of torque. Posaidon also revised the transmission and rear axle, while limited the top speed to 214 mph. Less neck-snapping performance packages are also on offer, ranging from 630 to 749 hp.