Mulgari has come up with a significant power upgrade for the Mercedes-Benz C63 AMG. Mulgari were able to increase the output of the naturally-aspirated engine 510 bhp and 521 lb-ft of torque. The car has received a custom stainless steel exhaust system featuring active valve technology allowing the driver to change the soundtrack by pressing a button. Mulgari also developed several carbon fiber bits and pieces such as the front splitter and rear spoiler, while the braking system has been up rated with performance fluids and materials. They removed the car’s 155 mph speed limiter and as a result the tuned C63 AMG can now hit a top speed of more than 170 mph.