German tuning house ATT Autotechnik gave the 2009 BMW 335i a series of appearance enhancements as well as two increased levels of performance.
For 2,355 Euro the ATT 2009 BMW 335i gets the power level I that increases stock output to 345 HP and 481 Nm of torque by using an additional controller. The power level II goes even further offering 362 HP and 526 Nm of torque thanks to the bi turbo system that has been added that holds a 4,130 Euro price tag.
At the exterior the ATT 2009 BMW 335i comes with 20 inch ‘LeMans’ wheels wrapped in high performance Michelin ‘Pilot Sport 2’ tires (3,475 Euro), plus a new stainless steel exhaust system offering a deeper note.

Source: ATT Autotechnik