I lowered my 2012 mustang V6 using the eibach sportsline lowering springs and Koni STR shocks and struts, would the 20x10 downforce wheels with +40mm offset on 275/35/20 tires fit with out any rubbing? how much is the clearance do I have? How much would it sticks out?
You should not have any clearance issues. With that big of a drop, you will need an adjustable panhard bar to keep the axle from sticking out further on one side. As long as you do that, these should not stick out.