The car tuners from McChip have released a new performance kit for the Mercedes C63 AMG, a car that has been around the block with popular tuning firms. Called the Stage 3 kit, this package consists of a new Cargraphic exhaust system and ECU reprogramming. With these aftermarket mods, the engine now produces 583 PS and 692 Nm of torque. All the performance numbers were not yet released by McChip, but we do know that the top speed has increased to 310 km/h. This Mercedes C63 AMG kit is priced at €10,000 ($14,200), and only takes three days to install. For an extra €7,474 ($10,600), final customizations include the matte black 19-inch alloy rims pictured, while wrapped in high performance Michelin tires.