According to the official BMW press release, the performance package will be available for 2012 and newer 335i and 335i xDrive models.
The upgrade will cost owners $1,100 and adds 20 horsepower and 32 lb.-ft. of torque to the 335i’s standard 300 horsepower and 300 lb-ft. of torque for a total output of 320 horsepower and 332 lb-ft. of torque. BMW 335i models with manual transmissions, however, will be limited to a 17-lb-ft. of torque increase.
The M Performance Power Kit joins the existing M Performance Parts line which includes chassis, aerodynamics, exhaust system components, and trim accessories.
Developed through consultation by the engineers at BMW M GmbH, the M performance power kit is immediately available through all authorized BMW dealers in the US and retains BMW’s 4-Year/50,000-mile new vehicle warranty when purchased with a new vehicle.
A two-year unlimited-mileage warranty is included with the performance package purchased for installation on later models.
The BMW M Performance Power Kit features comprehensive engine and includes updated software or replacement engine DME (electronic control unit), high-capacity engine air intake system, signature BMW M Performance engine cover, and rocker panel decals.
Even more impressive, the car still maintains its same fuel efficiency ratings with the upgrade.
BMW says the power kit will improve that highly coveted 0-60 time by 0.2 seconds and the 50 – 75 mph time by a full half of a second.
There’s no word yet on whether the carmaker plans to make the power boosting M kit available on other models, but I imagine it would be a very enticing incentive for potential BMW buyers.