G-Power Tunes the BMW X5 M Competition and Mercedes-AMG G63 to 800 HP

Giancarlo Perlas December 10, 2021

On their own, the BMW X5 M Competition and Mercedes-AMG G63 are packing a lot of power under their hood. Seeing some room for further improvement in the SUVs from rivaling brands, G-Power injected a couple of upgrades for them to bring their output up while giving them a fresher look with their new set of wheels.

The tuning package named GX5M for the X5 M and GP 63 Bi-Turbo for the G 63 AMG offers three selection of tuning upgrades, which are as follows:

1st Stage

The GP-700 kit turns the 4.4-liter twin-turbo V8 of the Bimmer and the 4.0-liter twin-turbo V6 of the Merc into 700 hp. The X5 M takes 627 lb-ft of torque while the AMG G63 gets 700 lb-ft of torque from the tune-up.

2nd Stage

The GP-750 software lets each SUV deliver 750 hp. The BMW’s torque is amped to 664 lb-ft while the Merc is raised to 737 lb-ft of torque. The performance kit comes with new sport downpipes for both SUVs. Meanwhile, the G-Class’ top speed limiter is also unlocked with the package.

3rd Stage

As its name says, the GP-800 kit boosts the X5 M and AMG G63’s outputs to 800 hp. The BMW packs 700 lb-ft of torque while the G63 can bring out 774 lb-ft of torque from it. The gains are unleashed through new turbochargers, and it is complemented with a GP-Deeptone exhaust system with adjustable valves.


The performance upgrades for the BMW X5 M Competition and Mercedes-AMG G63 SUVs can be partnered with G-Power’s signature 23×11-inch Hurricane RS and Hurricane RR forged wheels to complete their sportier looks.

Tagged with: , ,

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 →

Leave a Comment

Login to your account

Can't remember your Password ?

Register for this site!