German tuner packs three stages worth of power for Bimmer’s mid-sized luxury sedan

BMW tuner extraordinaire G-Power has a new tuning upgrade for the BMW M5, and it’s packing three stages worth of power upgrades. The new program is dedicated to the current-generation M5 F90, and in addition to the extensive modifications to the M5’s 4.4-liter, twin-turbo, V-8 engine, the tuning kit also includes a number of aerodynamic changes to go with a new set of wheels.

  • 2018 BMW M5 by G-Power
  • Year:
  • Make:
  • Model:
  • Engine:
  • Horsepower @ RPM:
  • Torque @ RPM:
  • Displacement:
    4.4 L
  • 0-60 time:
    3.4 sec.
  • Top Speed:
    190 mph
  • Price:
  • car segment:
  • size:
  • Purpose:
  • body style:


2018 BMW M5 by G-Power
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If you’re looking for wholesale changes to the exterior of the BMW M5 F90, you might need to look elsewhere to satisfy your cravings. For some reason, G-Power didn’t focus on the M5’s exterior for this program.

That said, the tuner is still offering a number of aerodynamic changes, including its Venturi RR hood, which, by the way, is made entirely from carbon fiber.

Besides that it’s made from the desirable lightweight material, the hood comes with air outlets and a Venturi nozzle, ensuring that the engine gets the proper ventilation at all times. The program also includes a new rear spoiler and a rear diffuser.

The other notable upgrade in this section of the M5 F90 is the set of wheels. Sure, BMW’s wheel offerings are impressive enough on their own, but if you want your M5 to sit on proper aftermarket wheels, G-Power’s set of 21-inch Hurricane RR forged ultra aircraft aluminum wheels is as good a choice as any in the tuning market.


2018 BMW M5 Interior Exterior
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The BMW M5 F90’s interior receives little love from G-Power. We took a glance at the tuner’s online shop and discovered that the tuner has little to offer as far as interior upgrades are concerned. You can get G-Power stickers to dress up your M5’s cabin, but apart from that and the obligatory G-Power-branded floor mats, you’re not getting what you expected in this section of the luxury sedan.


2018 BMW M5 by G-Power
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The lack of meaningful upgrades in the interior of the BMW M5 is disappointing. Fortunately, G-Power is ready to make up for it with one of the most comprehensive engine upgrades programs for the luxury sedan. The German tuner is offering three states of tune for the M5’s 4.4-liter twin-turbo V-8 engine.

The first stage revolves around two software tunes that you can choose from: Performance Software V1 or Performance Module V1. The first of these two modules (Performance Software V1) modifies the M5’s original engine software while the second module (Performance Module V1) is a plug-and-play solution that’s ideal for you, at least if you’re the type who prefers custom programming.

Regardless of the software, G-Power’s Stage 1 upgrade for the M5’s 4.4-liter twin-turbo V-8 unit results in an increased output of 690 horsepower and 620 pound-feet of torque.

Do the math, and that adds up to an extra 99 horsepower and almost 70 pound-feet of torque compared to the M5’s standard output of 591 horsepower and 550 pound-feet of torque.

In the event that you’re not satisfied with 690 horses and 620 pound-feet of torque, you can opt to get G-Power’s Stage 2 kit. G-Power ditches the Performance Module V1 software program in this stage in favor of the Performance Software V2 module. This program works in concert with downpipes and catalysts that G-Power developed in-house. The result of this upgrade is an output of 739 horsepower and 679 pound-feet of torque coming out of the same V-8 engine. In case you haven’t noticed, we’re venturing into supercar-levels of power. That’s the good news. The better news is that G-Power isn’t done.

2018 BMW M5 by G-Power
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If you want the full scope of G-Power’s engine upgrade program for the BMW M5, you’re going to have to go all-out and get the Stage 3 kit. This is the only program of the three stages that come with hardware components. The downpipes from the Stage 2 kit are included, but they’re also joined by modifications to the turbochargers, specifically a larger turbine and compressor wheels, optimized housings, and an enlarged intake area. A titanium exhaust system with four 100-millimeter carbon-titanium tailpipes Altogether.

The hardware upgrades are complemented by a Vmax suspension.

Altogether, the pieces are put in place to help the M5’s twin-turbo V-8 engine produce a whopping 789 horsepower and 723 pound-feet of torque.

In this state of tune, G-Power claims that the M5 is capable of sprinting from 0 to 62 mph in just 2.9 seconds before it rockets away to a top speed of 208 mph. By comparison, the standard BMW M5 is capable of sprinting from 0 to 62 mph in 3.4 seconds to go with a 190-mph top speed that can only be achieved with the optional M Driver’s Package. Otherwise, the BMW M5’s top speed is limited to 155 mph.


2018 BMW M5 by G-Power
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G-Power typically doesn’t reveal pricing details of its tuning programs, and it’s no different with this new kit for the M5. The usual game plan involves asking the tuner directly for a proper price quote.


2018 BMW M5 by G-Power
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G-Power is a known commodity in the BMW tuning scene. It’s arguably one of the most famous BMW tuners in the business. Its reputation is peerless. This new program for the M5 builds off of that reputation, offering you a chance to own an M5 with power levels that are firmly entrenched in supercar territory. The tuner lacks quality in some sections — the interior, most prominently — but that’s expected from a company that specializes in building engine upgrade programs that have no equal in the business. This is exactly what we have with this tuning program for the BMW M5. You might find other tuners that offer power upgrades for the performance sedan, but there are only a handful of tuners that can match the quality that G-Power provides. You can take that to the bank.

  • Leave it
    • No interior upgrades
    • Can you handle a 789-horsepower BMW M5?
    • Other options available in the market

Further reading

2018 BMW M5 High Resolution Exterior
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Read our full review on the 2018 BMW M5.

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Top Selling Model: BMW 3 Series

Read more BMW news.

Kirby Garlitos
Kirby Garlitos
Automotive Aftermarket Expert -
Kirby’s first exposure into the world of automobiles happened when he caught Knight Rider on television as a five-year old boy. David Hasselhoff didn’t leave much of an impression on him (that happened later on in Baywatch), but KITT certainly did. To this day, Kirby remains convinced that he will one day own a car with the same ‘spirit’ as the original KITT (not the 2008 monstrosity). He doesn't know when that will be, but until then, he’s committed to expressing his love for KITT, and all cars for that matter, here at TopSpeed.  Read full bio
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