Can anyone recommend or does anyone know what size of wheel spacers in mm I would need to make my wheels flush to the wheel well? Or at least decent enough to have the same stance as an S4? I have the stock USP 18" rims on them with H&R Sport springs with Bilstein shocks. I'm tempted to go 20 mm in the rear and 10 mm in the front but I'm really not sure and would love some expert advice before purchasing. Last thing I want is my wheels to look like their sticking out too far. I've looked at ECS Tuning and the prices are fair.

Thanks in advance.

 

i ran 10mm front and 15 mm in the rear with the 18 usp wheels the stance was just right, but i took them off as i could not get rid of a wheel vibration issue,was using the hubcentric ones as well.

 

IMO buy wheels with the right offset to start with, spacers are prone to cause vibration.

Best combo 8.5ET35 or ET32