Any gearhead will tell you that anything that flaunts the badge Mercedes-AMG holds some serious firepower. To be specific the GT R is a flagship high-performance coupe that will blow you away with its impressive specs. The stock trim already touts an exceptional spec sheet. We’re looking at 577 horsepower thanks to its 4.0-liter AMG twin-turbo V8 engine with 516 lb-ft of torque. This is mated to a 7-speed automatic dual-clutch transmission. If you think that this is as good as it gets, we can’t wait to change your mind when you meet the Mercedes-AMG GT R by G-Power.

This German tuning shop shows us that they can still work their magic to improve the GT R. Hence, what happens next is a slew of upgrades that will unlock the potential of this sleek machine. The stock engine is getting significant tweaks to unleash the beast within. G-Power is optimizing its the forged pistons, housings, the turbochargers, as well as the electronics. All of these changes push the 4.0-liter AMG V8 all the way up to 789 horsepower along with 627 lb-ft of torque.

Increasing power means that its 7-speed dual-clutch automatic transmission needs some reinforcement. Owners can even opt to slap on a set of Hurricane RR wheels wrapped with Michelin tires. The Mercedes-AMG GT R by G-Power tuning package offers multiple tiers for its customers. If the 789-horsepower option is too much for you, there are three other levels you can go for. However, we believe that owners will likely go for the full-course instead.

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Images courtesy of G-Power