In cooperation with Mcchip-dkr, German tuning firm Kubatech has presented a soft performance upgrade for the new Mercedes-Benz SLS AMG Gullwing.

 The kit is limited to a software optimization for the ECU. The Gullwing model's 6.3-liter naturally aspirated V8 engine normally lays out 571-horsepower and 650Nm (479 lb-ft) of peak torque at 4,750 rpm, and this package will bump those figures to 625-horses and 680Nm (501.5 lb-ft).[...]

Source: Carscoop