Want even more grunt from your BMW 335i or 335i xDrive sedan? Then opt for the BMW Performance Edition option, a new factory-endorsed engine tune that gifts 20 more hp to your turbocharged 3.0-liter inline-six engine. For now, it’ll only run you an extra $550…
The upgrade involves reprogramming the engine management computer, improving power from 300 hp to 320 hp. Torque climbs from 300 lb-ft to 317 lb-ft for cars with manual transmissions and 332 lb-ft for those with automatics. BMW says the power boost shaves 0.2 second from the car’s 0-to-60-mph time.
Alongside the engine tweaks, Performance Edition cars get black kidney grille inserts and a Performance Edition badge. The option package, called ZMZ in BMW’s ordering guide, costs just $550 and can be applied to any 2011 335i sedan through the end of 2011.
For those keeping track at home, the Performance Edition upgrade puts the 335i sedan on par with the coupe-exclusive 335is. The 335is is a “stepping stone” between the 335i and M3, offering 320 hp from a twin-turbo inline-six engine.
BMW will also make the Performance Edition package available as a retrofit kit to existing owners of the 135i and 335i. Pricing and availability of that upgrade will be announced in August.