German tuner Posaidon has developed an upgrade package for the Mercedes-Benz E63 AMG facelift.

German tuner Posaidon has developed an upgrade package for the Mercedes-Benz E63 AMG facelift.

Mercedes-Benz is offering the facelifted E63 AMG in an S-Model guise with 585 HP (430 kW) and 800 Nm (590 lb-ft) coming from a twin-turbo V8 5.5-liter. For those who feel the need for more power, Posaidon has managed to increase the output figures to no less than 853 HP (627 kW) and a whopping 1,300 Nm (959 lb-ft). The additional oomph was possible by installing two larger turbochargers, custom exhaust system as well as through several electronic tweaks.

To cope with the added power, Posaidon's engineers have revised the rear axle and gearbox while the top speed has been electronically limited to 214 mph (345 km/h), considerably more than the stock E63 AMG which is capped at 155 mph (250 km/h).

If 853 HP is too much, you will be happy to hear Posaidon is offering lesser packages in various outputs ranging from 630 HP (463 HP) to 749 HP (551 kW). 

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Mercedes-Benz E63 AMG tuned to 853 HP by Posaidon