I was wondering if the NA hub is the same as the Turbo II hub and if I can just put Turbo II vented rotors and the 4 piston front calipers on my NA hub?????

If not no big deal, I also have T2 hubs, thanks for the info.

 

If the hubs on your car have 5-lugs then you are good to go. Some na's came with them. Otherwise, if you only have 4-lugs in your existing hubs, you would need to do the 5-lug conversion. Plenty of write ups in here about that.
Do a search.

 

There is a different part number for the master cylinders, but I can hardly feel any difference on ones I have swapped.

 

Awesome! Yeah my FC is an s5 and came with 5 lug hubs. I was thinking of going with the 929 MC anyway.