New on this !

Hi guys i just got a 09 A6 3.0T Avant and i was wondering what u guys use for mods.

  1. lower,springs or Coilovers
    I heard a lot about ST coils because they cheap and good any imput?
    2)tune, APR,GIAC any imput
  2. air intake , what is available out there, or just do a custom or nothing at all?
  3. 20" wheels what off set are u guys running? I was thinking maybe 20x9 w 255/30 tires??
    Thanks in advance!