German tuner Wimmer RST is offering a performance upgrade on the Mercedes-Benz C-Class C63 AMG that provides a considerable output boost on the AMG’s 6.3 liter (6208cc) V8 power plant.

Called the Level 3, the performance kit dials up output to 580 PS (427 kW) and 690 Nm (509 lb-ft) of torque on the C63 AMG (series: 457 PS / 336 kW and 600Nm / 443 lb-ft of torque). Wimmer RST does so by means of an air induction optimization, an air filter from K&N and an ECU remapping. The Wimmer RS-Sport stainless-steel exhaust system helps add a few horse too while providing a more robust sound.

The Wimmer RST tuned Mercedes C63 AMG has an electronically-limited top speed of 305 km/h.