Joining a multitude of tuners that have worked over the BMW 1 M Coupe this past year is Hartge. The German company's program includes both performance upgrades and styling modifications for the M version of the 1-Series Coupe.
The tweaking starts under the hood with a Hartge power kit and a sports exhaust system that improve upon the standard model's 3.0-liter turbocharged inline-six lifting output from 335hp (340PS) to 396hp (401PS) at 5,850 rpm and maximum torque from 450Nm to 530Nm (391 lb-ft) at 2,950 rpm.[...]

Source: Carscoop