Edo Competition, famed for taking on some of the most ambitious tuning projects on some of the world's most exclusive cars, is back at it today with the announcement of new upgrades for the Mercedes Benz C63 AMG that make the car even more insane than before.

It's often said that the engineers at AMG have an unhealthy obsession with horsepower, but they can't really hold a candle to Edo's engineers. For Edo, the verdict was unanimous: 457hp and 600Nm is not enough.

In order to set the C63 AMG right, Edo has installed a number of modifications including a newly developed high-performance exhaust system, exhaust headers, high-flow catalytic converters, new air filters and a recalibrated ECU that conveniently dispenses with the pesky speed limiter. The result of all these engine upgrades is a boost of almost 100hp to the standard C63 AMG's output, giving it a grand total of 555hp and 501lb-ft of torque.

All that power helps push the Edo-prepped C63 AMG to a top speed of 199mph and will also take the super-sedan from standstill to 62mph in just 4.3 seconds. Additionally, the new exhaust system features butterfly valves to make sure the car has a bark to match its bite.

Finally, a set of lightweight 19-inch wheels is also on offer, shod in Michelin Pilot Sport Cup tires that Edo claim should be able to handle the extra grip required from all that extra horsepower - although you'll still probably see the traction control light flickering constantly.