2009 335xi with front wheel drive OFF via xDelete. 60* F ambient. MHD Stage 1+ tune with CSK Performance FMIC. Turbos replaced with OEM at 50K and the car is now at 138K miles. All recently new NGK 5992 plugs (at 0.022"), pre-cat O2 sensors, vacuum lines, upper and lower aluminum charge pipes, HPFP, low pressure fuel sensor, intake valve cleaning and external PCV valve mod with catch can.