[TX78666]

http://www.bmwblog.com/2010/09/12/dy...vs-n55-engine/

It turns out those rumors may have been right. The 2007 BMW 335i’s N54 twin-turbo six is rated by its manufacturer at 300 hp and 300 lb-ft of torque. And when we put the first 335i coupe on the rollers, it laid down a very impressive 275 hp and 300 lb-ft of torque. In awful conditions, too: 92 degrees of humid, Fahrenheit heat.

The 335is put down 293 hp and 343 lb-ft, beating every previous N54 we've tested by a big margin. And if you look at the torque curve, the midrange overboost function BMW promised (rated at 369 lb-ft) is definitely alive and well.