Did mine today. We'll see how it comes out once the tape comes off. Will have to take it to the local muffer shop I think to re-adjust my tip position since the Eissenman tips are not removable/adjustable like the AA. Did it as a 1 man job and used 20min epoxy which was good and definately needed as it took me 25min to finish all the taping. Used 4 sets of clamps and had to use a hydraulic shop jack on one end of the diffuser to get enough pressure to push the bumper and diffuser flush on one side (am keeping that applied overnight to be sure). Otherwise fingers are crossed.
'12 F10 550i (Dinan Stage 5/Intercoolers, CF Intake, Brace, Shockware, H&R Springs, Eisenmann Race Exhaust, CF rear difuser, Giovanni "Lindo" Graphite 20")
'10 e71 X6 35iDrive SAV (Space Gray) - Gone
'06 e85 Z4 M Roadster (Black Metallic) -Gone
'08 e92 M3 coupe (Sparkling Graphite) -Gone