Mariani’s Mercedes-AMG GT 63 S 4-Door With Mindblowing 725 HP Unveiled

Giancarlo Perlas September 23, 2023

German automotive tuner Mariani just unveiled a captivating array of enhancements for the Mercedes-AMG GT 63 S 4-Door, promising to elevate the super sedan’s performance and appeal. With a focus on power, aesthetics, and handling, Mariani’s modifications are set to make the high-performance car stand out in the crowd.

Mariani Mercedes-AMG GT 63 S 4-Door


Mariani’s skilled engineers have performed an impressive surgical feat under the hood of the AMG GT 63 S 4-Door. According to the tuner, the 4.0-liter twin-turbocharged V8 engine of the super sedan now roars with a staggering 725 horsepower and 700 lb-ft of torque.

These numbers represent a remarkable increase over the stock version of the car and even its original specifications. While it’s not enough to match the hybrid AMG GT 63 S E-Performance‘s astonishing power figures, Mariani’s rendition certainly doesn’t lack in the performance department.

Wheels and Tires

One of the very noticeable enhancements in the tuned Mercedes is its set of striking wheels, available in 21-inch and 22-inch variants. These wheels are not just about aesthetics; they are designed to optimize the AMG GT 63 S 4-Door’s performance.

The 21-inch wheels stand out in particular with an impressive 11-inch width in the front and a commanding 12.5-inch width in the rear. These are paired with sticky 325 mm tires at the back, ensuring that this sedan grips the road with authority.

Suspension and Dampers

Mariani doesn’t stop at just the engine and wheels; they’ve also taken care of the sedan’s handling. The ride height has been lowered by up to 55 mm, adding a touch of aggression without compromising the original active dampers and E-Active Body Control system.

This balance is essential for maintaining the car’s driving dynamics while enhancing its aggressive stance on the road.

Exhaust and Tailpipes

Mariani’s attention to detail extends to the rear of the GT 63 S 4-Door, where a new exhaust system with adjustable flaps has been integrated. Crafted from premium stainless steel, this exhaust system not only adds to the sedan’s visual appeal but also offers a customizable acoustic experience.

Whether buyers prefer a subdued purr or a thunderous roar, Mariani’s exhaust system allows them to tailor the sound to their liking.

German Precision: TÜV Approval

Crucially for German customers, Mariani’s exhaust system comes with TÜV approval, ensuring that it complies with strict emissions and safety standards. This means that owners can enjoy the enhanced sound and performance without concerns about legal compliance.

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About Author

Giancarlo Perlas

Giancarlo Perlas is an economist by profession with a career spanning nearly two decades. His professional journey has seen him assume vital roles in various government and private organizations, particularly in the blockchain and cryptocurrency sectors. Alongside his civic and corporate pursuits is his love for cars, particularly those made by Mercedes-Benz. In 2012, he found himself with like-minded individuals within BenzInsider. From then on, he used the platform as a way to share his passion with the automotive community. Follow his Facebook page at, X (formerly Twitter) @giancarloperlas, and IG @benzinsider. View all posts by Giancarlo Perlas →

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