If you figure there are 7 (there may be more, I know there are 7 for sure) pieces that you can get augment slots on, and you put a 50 rating augment in each one, it can make a big diff. Just looking at my mods:
+12 End
+18 Cun
The augments are giving me:
12*7=84*10=840 more HP
18*7=126 Cunning
I feel like that is a pretty significant upgrade, but who knows.