• 635 hp / 467 kW @ 7,800 r/min (+ 185 hp / 136 kW)
• 630 Nm 3,900 r/min (+ 190 Nm)
• Top speed: 323 km/h
• 0-100 km/h: 4.2s
• 0-200 km/h: 11.9s
• G-POWER SK II “Sporty Drive” supercharger system:
€ 23,500.00 (excl. tax) plus installation

Club sport events are enjoying increasing popularity across the world. These events have traditionally been dominated by Porsche vehicles. Then, in 2009, BMW decided to stop ignoring widespread customer demands for a base vehicle for use in club sport events and unveiled the Project M3 GTS. Delivery of the limited run of 150 units was scheduled for early 2010. However, it took until the end of 2010 for the first vehicles to reach customer hands, of which 3 found their way immediately into the G-POWER workshops.

Although the BMW M3 GTS differed from the base M3 in virtually all parameters relevant to motorsport – adjustable aerodynamic body components front and rear, 100 kg less weight, a modified suspension and brake setup – the power increase of 30 hp to 450 hp turned out to be somewhat reserved. This is particularly so, when you consider that the Porsche 911 GT3 RS with the same output has to move only 1,370 kg (DIN). Against this, the 1,530 kg (DIN) of the BMW M3 GTS seems almost flabby.

Luckily for all ambitious club sport drivers, G-POWER is the sole tuner in the world being able to resolve this shortcoming. With our more than 25-years experience in the BMW sector, we are the world’s number one address when it comes to supercharger systems for BMW vehicles in general and M models in particular.

The high-revving V8 power unit of the BMW M3 GTS has proven itself as the ideal starting point for the forced induction technology practiced by G-POWER with ASA superchargers. Because the engine with a 10% greater displacement of 4.4l has got even larger reserves that can be used for an additional output increase than the 4.0l standards M3 power unite, that has successfully managed full throttle test bench drives for more than 350 hour non-stop and therefore is rightly well-known for its durability.

A version of the renowned and globally proven G-POWER M3 “Sporty Drive” supercharger system, adapted specifically for the BMW M3 GTS raises the standard output from 450 hp to 635 hp and 630 Nm of torque. The ex works reinforced engine block of the BMW M3 GTS along with a forged crankshaft and reinforced con rods are the basis for this increase of the output maximum from 600 HP (standard M3) to 635 HP (M3 GTS).

Speaking of strength and durability it needs to be mentioned that the featured ASA superchargers can easily compete with the qualities of the engine basis coming from BMW. ASA superchargers are used not only in the ALPINA B5S, B6S and B7S models, but also in the ALPINA B6 GT3. In ALPINA’s works race car, the ASA supercharger has already provided impressive proof of its reliability and quality in competition over a distance of 3,500 km through the “Green Hell” – at the 24 Hours of the Nürburgring. The exclusive application of OEM-quality components is a fundamental element of the G-POWER philosophy.

But it is not just the OEM-quality of the used components that ensures the exceptionally high quality, reliability and durability of the G-POWER products. A major contribution to it comes from our engineering process that meets to industry standards, starting with the CAD engineering, followed by the prototyping and ending with test drives on the Autobahn and in hot climate countries like Saudi Arabia.

A particular highlight of this engineering process is the use of the instrumentation of our technology partner AVL, by the way G-POWER being the only BMW tuner world wide to use this equipment. It measures the exact peak pressure that develops in the combustion chamber. With this information at hand the engineers were able to develop a custom-made software for the ECU, that keeps the peak pressure in the combustion chamber of a M3 power unite equipped with a G-POWER “Sporty Drive” supercharger system similar to the stock figures. So overstraining is not an issue.

More than 3000 sold G-POWER supercharger systems and the high customer satisfaction state that the huge effort made during our engineering process are worthwhile.

On the exhaust side, a lightweight, all-titanium exhaust system made by G-POWER delivers the necessary reduction in exhaust back pressure. The exhaust, developed specifically to suit the requirements of the SK II supercharger system, is equipped with 100 cpsi metal catalytic converters. The engine control unit software, which controls the setup for the V8, was also developed by G-POWER for the BMW M3 GTS.

In combination with the G-POWER SK II “Sporty Drive” supercharger system, this kind of high-revving V8 is nothing short of stunning. The “Sporty Drive” technology, developed by G-POWER for the G-POWER supercharger systems retains the unique performance characteristics of the M power unit. Compared with the series-production version, the addition of a G-POWER supercharger system delivers further improved response to even the tiniest movement of the gas pedal, plus absolutely no restrictions in its aggressive high revving under full load and progressive power delivery right up to the rev limiter. In addition to these features, the increased output of the V8 engine delivered by the G-POWER supercharger system also comes with a significant plus in mid-range torque. Especially when accelerating out of a slow corner, this feature of “Sporty Drive” technology will leave competitors to G-POWER M3 GTS drivers looking on in despair.

The performance figures, too, are designed to drive fear into the hearts of the competition. The G-POWER M3 GTS with 635 hp completes the standard sprints from 0-100 km/h and 0-200 km/h in 4.2s and 11.9s. Even more impressive: from 100 km/h to 200 km/h it takes the G-POWER M3 GTS 2.2s less than the standard M3 GTS. Top speed is 323 km/h. These figures have been clocked by a German car journal during their latest test of the G-POWER M3 GTS.

Further modifications to the series-production suspension and wheels of the BMW M3 GTS were not undertaken, as the standard M-GmbH setup already guarantees perfect balance and race-ready handling. It was only the shortage of power that was preventing faster lap times. With 635 hp, the hunt for lap time records is now on, like the car journal “sport auto” has proven with a new fastest lap for BMW M3s on the Hockenheim circuit. It took the G-POWER M3 GTS, equipped with MICHELIN standard street tires, just 1.11,8 min to complete the lap. But this lap time doesn’t show the huge potential of the G-POWER M3 GTS at all. Equipped with matching Cup tires and an adjusted suspension, one to two seconds faster laps are absolutely realistic.

The price for the 635 hp G-POWER SK II supercharger system for the BMW M3 GTS is EUR 23,500.000 (excl. tax) plus installation.

To optimise the flow of air and adjust the car's down force as required, the BMW M3 GTS comes with a race-oriented front air dam and rear wing. This allows appropriate adjustment of the car's aerodynamic qualities in motorsport and for other purposes, tailored to the specific profile of the respective track. The air guidance units on the front air dam, for example, may be varied in their geometry, just like the position of the rear wing based on the wing already featured on the BMW 320si raced in the WTCC World Touring Car Championship.

Similar to the BMW AG G-POWER, the number one in supercharging, has performed a complex program for the G-POWER M3 supercharger systems to increase its efficiency. The result shows the long-standing experience and the technical expertise of the G-POWER engineering department. Next to the three supercharger systems SK I, SK II and SK II CS for the standard BMW M3, the system for the BMW M3 GTS has now been modified in the course of the G-POWER „Efficiency Program“.

Nomen est omen. The “TU” in the name of the G-POWER SK II “Sporty Drive” TU supercharger systems is standing for “technical update” and it indicates that the well-known and proven G-POWER M3 supercharger systems are available with a technical optimized 2013 version. Following the systems for the standard BMW M3’s the system for the BMW M3 GTS has now been updated, too. The revisions have been made in order to enhance the power output, to simplify the system’s installation and are the results of a continuous quality improvement process.

The product launch has been preceded by extensive CAD engineering, complemented with virtual computational fluid dynamics analysis (CFD analysis) and intensive test driving. All components of the air intake and the fuel supply system have been developed from scratch or extensively revised based on our many years of experience. The modified air intake is now housing a larger racing air filter that provides for an enlarged air mass flow and at the same time is more durable and dust resistant. The additional air mass, that is provided by the new air intake, allows the use of the ASA T1-523 supercharger compared to the ASA T1-522 supercharger used until now. An additional fuel pump system with ECU for a map controlled activation completes the modification of the hardware. Moreover, thanks to the complete redevelopment of the air intake, its overall part count has been optimized, further simplifying the installation of the M3 “Sporty Drive” TU supercharger system. The modification of the standard ECU software to the new parameters of the forced induction has been completely reworked and optimized in the course of the upgrade process and is now based on the latest software version of BMW.

In the end the output is now increased by an additional 15 hp compared to the existing output enhancement.

More important to the customer than the naked figures, however, is the power delivery – i.e. the experience generated by the additional output. The key here is the term “Sporty Drive”. In the specification for every tuning program undertaken by G-POWER, this aspect is afforded the same priority as the target power increase itself.

The very first thing you notice behind the wheel of a BMW M3 GTS with a G-POWER “Sporty Drive” TU supercharger system is the extremely sporty throttle response. Every input from the gas pedal is translated immediately into forward propulsion, without the lag usually associated even with modern turbocharged engines. The driver’s command is proportionally and instantaneously implemented. One further characteristic of mechanical supercharging using the ASA radial supercharger is the outstanding torque in the middle of the rev range, which is particularly impressive during overtaking manoeuvres. This lively response from mid-range revs increases continuously until engine speed peaks, which is also where maximum boost pressure is achieved. The acceleration experience is akin to being fired from a catapult.

In sheer numbers: the standard sprints from 0-100 km/h and 0-200 km/h are completed in 4.1s and 11.8s. Even more impressive: from 100 km/h to 200 km/h it takes the G-POWER M3 GTS 2.2s less than the standard M3 GTS. Top speed is 323 km/h.

Of course the negative acceleration is in the focus of G-POWER, as well. The G-POWER braking system with six respectively four brake pistons bytes into mighty up to 396 mm in diameter Ceramic-Carbon brake discs. The high performance braking system for the G-POWER M3 GTS has been exclusively designed together with Mov’it according to the specifications of G-POWER in order to match the performance and top speed of the G-POWER M3 GTS. With this set-up, the G-POWER braking system always provides maximum brake force and the braking point remains precise in any case. In addition the G-POWER ceramic braking system reduces the unsprung mass by 50% percent, compared to a system with steel brake discs. Accordingly the cornering and road handling is improved significantly.

In order to ensure that this extra power is delivered safely to the road, G-POWER recommends a combination of the G-POWER 20-inch SILVERSTONE CS wheel set with Michelin tyres measuring 255/30 ZR 20 on the front and 295/25 ZR 20 on the rear axle.

Further modifications to the series-production suspension of the BMW M3 GTS were not undertaken, as the standard M-GmbH setup already guarantees perfect balance and race-ready handling. It was only the shortage of power that was preventing faster lap times. With 650 hp, the hunt for lap time records is now on.

• 650 hp / 478 kW at 7.800 rpm (+ 200 PS / 147 kW)
• 630 Nm 3.900 rpm + 190 Nm
• V-max: 323 km/h
• 0-100 km/h: 4,1s
• 0-200 km/h: 11,8s
• G-POWER SK II „Sporty Drive“ TU supercharger system:
€ 23.500,-- Euro (net) plus installation

The roots of the BMW S65 V8 high-revving engine go back to the times when BMW has been actively involved in Formula 1 racing. And similar to the BMW Formula 1 engine the max. power output has been generated through a rev limit unknown for BMW V8 serial produced engines until now. German Engineering at its best.

But once again: History now. With the current generation of BMW M3 / M4 models, BMW has changed from the concept of high-revving engines for good and dedicated itself to the concept of turbocharging, even for its high-performance models. It goes without saying that this has changed the character of the BMW M3 / M4 models profoundly.

May the differences in in the performance figures be neglectable at a first look, the picture changes completely as soon as the S65 V8 high-revving engine is started up. The way this engine responds to each and every movement of the accelerator and yaws for high rpms is something that a turbocharged engine can never accomplish due to its design layout. Thus a hug part of the fascination BMW “M” has been lost forever.

That things can be different is something G-POWER has shown for many years with its supercharger systems based on the radial superchargers from ASA Kompressor – forced induction without diluting the character of the high-revving engines. In fact it has achieved quite the contrary. Due to the adaption of the BMW M3 S65 engine to forced induction, the response, being the reaction of the smallest movements of the accelerator, has become even crispier. It feels like the engine has been directly connected to the driver’s foot.

One further characteristic of mechanical supercharging using the ASA radial supercharger is the outstanding torque in the middle of the rev range, which is particularly impressive during overtaking manoeuvres. This lively response from mid-range revs increases continuously until engine speed peaks, which is also where maximum boost pressure is achieved. The acceleration experience is akin to being fired from a catapult.

A version of the renowned and globally proven G-POWER M3 “Sporty Drive” supercharger system, adapted specifically for the BMW M3 CRT / GTS raises the standard output from 450 hp to 650 hp and 630 Nm of torque. The ex works reinforced engine block of the BMW M3 CTS and GTS along with a forged crankshaft and reinforced con rods are the basis for this increase of the output maximum from 615 HP (standard M3 with G-POWER supercharger system) to 650 HP (M3 CRT / GTS with G-POWER supercharger system). But it is not just the OEM-quality of the used components that ensures the exceptionally high quality, reliability and durability of the G-POWER products. A major contribution to it comes from our engineering process that meets to industry standards, starting with the CAD engineering, followed by the prototyping and ending with test drives on the Autobahn and in hot climate countries like Saudi Arabia. A particular highlight of this engineering process is the use of the instrumentation of our technology partner AVL, by the way G-POWER being the only BMW tuner worldwide to use this equipment. It measures the exact peak pressure that develops in the combustion chamber. With this information at hand the engineers were able to develop a custom-made software for the ECU, that keeps the peak pressure in the combustion chamber of a M3 power unite equipped with a G-POWER “Sporty Drive” supercharger system similar to the stock figures. So overstraining is not an issue. More than 3000 sold G-POWER supercharger systems and the high customer satisfaction state that the huge effort made during our engineering process are worthwhile.

On the exhaust side, a lightweight, all-titanium exhaust system made by G-POWER delivers the necessary reduction in exhaust back pressure. The exhaust, developed specifically to suit the requirements of the SK II supercharger system, is equipped with 100 cpsi metal catalytic converters.

In figures: The standard sprints from 0-100 km/h and 0-200 km/h are completed in 4.1s and 11.8s. Even more impressive: from 100 km/h to 200 km/h it takes the G-POWER M3 CRT / GTS 2.2s less than the standard M3 CRT / GTS. Top speed is 323 km/h.

The price for the 650 hp G-POWER SK II supercharger system for the BMW M3 CRT / GTS is EUR 23,500.000 (excl. tax) plus installation.