Are you guys that lazy that you can't figure it out by comparing your current (stock or whatever) wheels to whatever you want to run & see how much more inside & outside clearances you have?
Wheels & Tires section, plus [url=
http://www.1010tires.com/WheelOffsetCalculator.asp]Wheel Offset Calculator], plus a tape measure for your own car to see how much clearance you have, and you're done. That's how I fit my wheels, it took me about 15 minutes to figure out approximately what I can run, if that.
Yes, it's true that coilovers fit differently depending on the brand; however, you should realize that your camber (and whether you set it up w/ the camber plates and/or camber bolts) and potentially other things such as frame condition, tire size, whether you have stock body or rolled fenders or wide fenders etc - all affect your own clearances, even w/ the same exact model coilovers compared to another car.