Hey there, if I remember did you put new sway bars on then took them off? Maybe front you did. MY 35DB seems to be swaying more with the 6K miles on it. The 35DB is the heaviest of the 5 series, so I think that the sway bars would help. YES I want to do the airbags, but not sure if we will keep this thing, it's really created some bad vibes and feelings in this household. Sway bars isn't that big of an investment, and may help. What do you think? Brand? Thanks