1st gen powerstroke 7.3 vs 2nd gen powertstroke

[Dallas4x4]

I was looking at aftermarket parts for my truck. Many products i liked but were only available to 99-03s. It got me wounding whats the difference between 94-97 and 99-03's 7.3Ls.

[sldghamr]

bigger turbo
bigger injectors
HPOP was different (don't know exactly how)
Intercooler
programming in the computer too accomodate above changes

if there is anything else, i am not aware of it

[Dallas4x4]

would a 99+ turbo bolt on to a 94+ engine