my E30 325iC has a Mtech I rear valance(or that's what I think it's called) and I want to put a Mtech I front valance on my car. I know that I have to change out the facelift front panel for a prefacelift one, but I'm not sure about the rest. What else do I need to change/ do so I can mount the Mtech I front valance?
Picture of my car:

What I would like the front of my car to look like:



