US tuner Weistec is introducing an engine upgrade for the Mercedes SLS AMG, promising to give us the most powerful Gullwing in the world. We are talking about a German supercar that is now on American steroids and ready to tear up both the track and the road.

So, let's get to the point: The Weistec Mercedes SLS AMG allows the driver to play with no less than 750 hp and 664 lb-ft of torque (900 Nm), with the new muscle arriving via a supercharger upgrade. The best part? It's emissions legal.[...]

Source: autoevolution