What spacers should I get???
 

Hello everyone!!
I have an a4 b5 that im gettin coilovers for but I was wondering what size of spacers should I get?. My rims are from an rs4 they r 17x7.5 and I was thinking bout getting maybe 15mm rear and 12.5 on the front but I don't know if that is the best option or the best look. I wanted to know what you guys think and what have you guys done and how it looks if you could help me please.!!