Mercedes-AMG GT R Gets A Massive Power Upgrade

Tuning

Can’t wait for the Mercedes-AMG GT Black Series to arrive? Buy this modified GT R instead.

With a twin-turbocharged 4.0-liter V8 engine producing a hefty 577 horsepower and 516 lb-ft of torque, few would argue that the range-topping Mercedes-AMG GT R needs more power. This setup rockets the GT R from 0-62 mph in 3.6 seconds and on to a top speed of 198 mph. Mercedes-AMG clearly thinks there’s still room for improvement, though.

Next year, the long-awaited GT Black Edition will give Mercedes-AMG’s’ second standalone model a spectacular send-off with yet more power and some aero upgrades. If, however, you can’t wait for the new Black Series to arrive, G-Power has given the current GT R a significant upgrade in the power department.

G-Power is offering no less than four different tuning packages that increase the V8’s output. Impressively, the range-topping variant extracts 789 hp and 627 lb-ft of torque from the V8 unit. This impressive upgrade is achieved by a combination of the Performance Software V4 and several hardware modifications including a fuel pump, weight-optimized forged pistons with reduced compression, modified turbochargers with larger turbine and compressor wheels, CNC-optimized housings, and enhanced compressor turbine blades.

The tuner also installs a new intake system with sports air filters and downpipes with sports catalytic converters before reinforcing the seven-speed dual-clutch automatic transmission to help the modified AMG GT R cope with the extra muscle.

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If 789 hp is too much power for you to handle, G-Power also offers the Performance Software V3 combined with the same hardware modifications to produce 740 hp and 590 lb-ft of torque. Alternatively, the Performance Software V2 increases the 4.0-liter V8’s output to 681 hp and 568 lb-ft of torque with the help of flow-optimized downpipes.

Finally, the entry-level Performance Software V1 packs 641 hp and 553 lb-ft of torque, which is still a significant upgrade over the standard car. Each upgrade also comes with Hurricane RR forged aluminum wheels with 275/30 ZR20 Michelin tires at the front and 305/25 ZR21 rubber at the rear.

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