Great car man! I think i found its twin! Interested in how easy it was to retrofit the Vorsteiner rear diffuser to the car. I have the M sport package and an Eisenmann Quad...let me know what you think?
PS...I also recently retrofitted back to winter tires for the season as well. Went with Michelin Pilot A/S 19" wheels on my M Sport OEM wheels. Much better than the run flats the car came with!
'12 F10 550i (Dinan Stage 5, LSD, Intercoolers, CF Intake/Brace, Shockware, Springs, Eisenmann Race Exhaust, CF front/rear difuser, Giovanni Graphite 20" wheels)
'10 e71 X6 35iDrive SAV (Space Gray) - Gone
'06 e85 Z4 M Roadster (Black Metallic) -Gone
'08 e92 M3 coupe (Sparkling Graphite) -Gone