With a twin-turbocharged 4.4-liter V8 that’s factory rated at 552-horses (560PS) and 680Nm (501 lb-ft), the new BMW M6 Coupe is already a very fast car, but there’s always room for improvement, right?

German tuner G-Power agrees, and has unleashed a new performance package for the two-door sports car. As always, it all begins with the beast lying under the hood that adopts upgraded software and a lighter (by 12kg or 26 pounds) titanium exhaust system pushing output numbers to 631hp (640SP) and 777Nm (573 lb-ft).

The improvements allow G-Power’s M6 Coupe to reach 100km/h (62mph) in an impressive 3.8 seconds and hit a top speed of 315km/h (196mph).

To put the brunt to full use, the tuner has made changes to the M6’s transmission, while also adding a new tauter coil-over suspension and a powerful ceramic braking system. The M6 rides on G-Power’s own 21-inch “Silverstone RS” forged alloy wheels in tires size 265/30 ZR 21 and 305/25 ZR 21 for the front and rear axles respectively.

As far as the cost is concerned, the tire package is priced at €8,325, the coilover suspension at €2,180, the ceramic brake system for the front axle €14,460, the titanium exhaust at €5,985 and the engine tune at €5,200.

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