I need help finding out what the offset is on my rotors. I called the audi dealer and they gave me part # 8E0615301AD now i just need to figure out what the offset is for these rotors. i cant measure my current ones because they have been resurfaced already so i cant get a correct measurement. I will be buying them from ECStunning.com.Thx

 

a simple search would have found this. 321 x 30 mm google is your friend.

 

i know what size they are..i need to know the offset of the rotor hat...its either 16.7 or22.7 i just dont know which one?