Ooooohhhhh lol thanx for telling me that I been trying to figure it out. No adapters. They're 225/40/18x8 offset??
Added a oem spoiler to my car today.
Also adding the roof spoiler with matching color
Some extra pics while paint dried
Edit: I did some quick research with the rs4 replicas and for my size rim it's either et35 or 45. I'll have to see on my rim what it says next time I take them off.