Thinking about getting the 4.6 kit and/or the running boards for my 2002. (front & rear skirts). I have some questions that I'd appreciate answers to!

-running boards comes with wider rear wheel flares ?

-4.6 kit come with wider rear wheel flares?

-do these kits need any sort of mods to fit and work with eachother?

-How difficult are these to do by yourself?

Thanks!