In 2009, BMW introduced the M3 GTS, a high-performance, lightweight and high-powered version of the M3 that was designed specifically for the racetrack. The GTS version features lightweight interior materials, carbon fiber racing seats, a standard roll cage, adjustable aerodynamics, a 450-horsepower V-8 engine, lighter BMW wheels, and high-performance brakes. The whole car weighs 100kg less than the standard BMW M3, making it a very capable driver-oriented car.

Although the BMW M3 GTS is limited to a production of only 150 units, G-Power GmbH in Germany decided to develop a special supercharger system for the GTS. Called the G-POWER SK II “Sporty Drive” supercharger system, the kit consists of a number of modifications that give the M3 GTS more power without sacrificing drivability.

In the standard BMW M3 GTS, the 4.4-liter V-8 is naturally aspirated and produces 450 horsepower. After the G-Power supercharger kit, the engine sends out 635 horsepower (467 kW) at 7,800 RPM and 464.6 lb-ft. (630 Nm) of torque at 3,900 RPM for each of the BMW rear wheels. The basis of the kit is an ASA SK II supercharger system. ASA was chosen for its proven reliability and power in racing cars and for the engineering behind its products. The new supercharger system provides even better mid-range torque and better throttle response than the original engine. To reduce back pressure, G-Power can install a lightweight titanium exhaust developed specifically for the SK II supercharger system. The exhaust also features 100-cell catalytic converters to improve the flow of exhaust gases. If customers want to lose even more weight, G-Power offers a carbon fiber airbox upgrade. The entire system is controlled by a redesigned ECU developed specifically for the GTS.

Equipped with the G-POWER SK II “Sporty Drive” supercharger system, the BMW M3 GTS can accelerate to 62 mph in 4.2 seconds, hit 124 mph in 11.9 seconds and reach a top speed of more than 200 mph (323 km / h ). The European magazine Sport Auto tested the BMW M3 GTS with the G-Power supercharging system at the Hockenheim circuit and achieved a lap time of 1: 11.8.

G-Power did not touch the body, suspension and interior of the BMW M3 GTS. One of the ways customers can achieve even better performance with the supercharger system is to install new concave wheels and an improved suspension. By updating the original BMW wheels with forged concave wheels, you will improve the GTS’s handling, acceleration and stopping power. The concave forged wheels also offer the improved strength needed to handle the 635 horsepower engine. Improving the suspension will make the M3 GTS even more proficient on the track and lead to faster lap times.

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