What are the widest wheel spacers that can be put on with the OEM studs?

 

2-3mm spacers.

 

you can get the project kics spacers with their own studs in them. Since the oem studs will extend past the actual spacer, you need to check that the wheels have space between the lug holes to accomodate them.

I remmember someone running 20mm project kics spacers on stock wheels though and it looked fine.

jim