Question 1
this shop sells eibach springs and its a 1.7 inch drop...is that a nice drop for the 5th gen?

Question 2
We all have that function on the remote where you let the 2 front windows down. I wanna know could it be set to where you can have all 4 windows roll down and the sunroof let back also within the push? why let down 2 when u got 4 windows

 

Question 1 is all a matter of opinion.

Question 2 has never been done before.

 

Question 2 may/may not be able to be done.
Mine doesn't have that option so I can't look up the diagram.
--If the wiring goes straight from the power to the remote box then to the windows, it could probably be done with some splicing of wires.
--If the wiring for the remote and the window switches are already integrated together you will ultimately roll your back windows up/down when you roll your front ones up/down, if this is the case I wouldn't recommend it. (I would bet money this is the way the wiring is set up, Manufacturers typically don't spend extra $$ adding additional wires when it's not necessary)

 

You can decide for yourself here:

http://www.innerbean.com/housecor/sp..._decision.html

And I don't think its really a 1.7" drop.