Hope this helps or gets a sticky for those searching. I'll start with the E90 and add the E92. Let me know which ones I need to add.
E90 M3
Vorsteiner type II:
Revinora E90 diffuser
3F Engineering E90 - coming June 2013
Challenge race: Avl. AGAIN!
Mode carbon Type II: (E90 Discontinued)
3D Design:
Arkym:
Varis with Arkym combo (Varis is made for E92 only *needs modification*) girl not included!
E92 M3 Pics are below-------------------------------------------------------------
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Metak Diffuser (this is a custom piece from forum member "Mr.Metak2you")
3D Design:
Vorsteiner type II:
Vorsteiner VRS:
Vorsteiner GTS:
Challenge: Now shipping again!
Challenge sport: (out of production) A rare unicorn indeed if you can find one!
Varis:
Varis: (system 1)
Varis: lower tray only
Arkym:
Arkym Aerorace (rear bumper): Forum member Limey
Mode carbon:
Mode Carbon Race:
AC Schnitzer:
Hamann:
Exotics tuning:
Platte forme ag:
Duke Dynamics: unable to find a photo of one installed.
3F Engineering:
Arqray:
Gintani:
Revinora:
Viga-Design: