Skip advert
Advertisement

G-Power BMW M4 CS launched with 592bhp from new upgrade package

German tuning company G-Power has applied its hand to the BMW M4 CS

G-Power has released details of a new upgrade package available for the BMW M4 CS. Building on the standard S55B30 straight-six engine, G-Power is quoting a power figure of 592bhp through a variety of upgrades.

Representing a significant 140bhp power increase over the standard M4 CS, the major source of the power gain is generated from a bespoke ECU software package, unlocking the engine’s potential without compromising on reliability or driveability.

Advertisement - Article continues below

> Click here for our reveiw of the BMW M4 CS

In addition to the revised ECU, G-Power has also replaced the turbo’s compressor wheel with a new CNC-milled unit, developed in-house by G-Power’s engineers. Combined with a new turbo housing, the new pulley wheel’s lower weight will also reduce rotational inertia inside the turbocharger, improving throttle response despite the higher boost being produced.

Performance times are quoted at 3.7 seconds for the 0-62mph sprint, topping out at close to 200mph thanks to the removal of BMW’s top-speed limiter.

G-Power has also fitted a titanium exhaust system tipped with four 90mm carbonfibre finishers. Bespoke coilover suspension and new 20- and 21-inch wheels have also been fitted.

For those not familiar with the company, G-Power is a German tuning company formed in the early 1970s specialising in BMWs. By 1976, G-Power had developed its first tuning kits for various BMW models, consisting of uprated carburettors, cams and headers. By the 1980s, G-Power had moved on to manufacturing plastic bodywork for the BMW 2002, and now specialises in upgrade packs for most of BMW’s sports car range.

Skip advert
Advertisement

Recommended

Forget the M5 Touring, the BMW Speedtop is the ultimate V8 estate
BMW Concept Speedtop
News

Forget the M5 Touring, the BMW Speedtop is the ultimate V8 estate

The ultra-exclusive BMW Concept Speedtop makes an M5 Touring look ordinary, and we've taken a closer look at the 2025 Japan Mobility Show
29 Oct 2025
BMW's cheapest performance car now has Audi RS3 power for £13,000 less
BMW M240i xDrive
News

BMW's cheapest performance car now has Audi RS3 power for £13,000 less

Munich’s popular 3-litre straight-six has been given an update for 2026, making BMW’s M-lite range even more competitive than before
24 Sep 2025
The EU is considering banning carbonfibre, but BMW has other ideas
BMW natural fibre composite
News

The EU is considering banning carbonfibre, but BMW has other ideas

BMW has developed a new type of eco-friendly composite, just as European Parliament has proposed limiting the use of carbonfibre in road cars
23 Jun 2025
Best BMW M cars – the ultimate driving machines
Best BMW M cars
Best cars

Best BMW M cars – the ultimate driving machines

M is one of the fastest letters in the motoring alphabet. We pick our favourites from over 50 years of BMW M icons
20 Jun 2025
Skip advert
Advertisement

Most Popular

Why the wild V8-powered Land Rover Defender D7X-R has ‘flight mode’
Land Rover Defender Dakar D7X-R
News

Why the wild V8-powered Land Rover Defender D7X-R has ‘flight mode’

The Land Rover Defender will take on the world’s most gruelling off-road race in 2026. Here’s our first look at the car that will do it
25 Nov 2025
How a sub-200bhp runabout exposes the problem with today’s performance cars
695C Turismo
Opinion

How a sub-200bhp runabout exposes the problem with today’s performance cars

A shortage of long-term test cars flags up a wider problem, says Meaden
27 Nov 2025
Everyone loves the idea of a GT car, so why does nobody buy them?
Aston Martin Vanquish
Opinion

Everyone loves the idea of a GT car, so why does nobody buy them?

We all love a great GT, says Jethro. Trouble is, no-one wants to buy them
21 Nov 2025