I always thought TITANIUM is stronger, but not lighter.....if you want something lighter, aluminum screws are lighter, but i know they are softer.....(correctly me if I am wrong)
On my NTC3, I used light weight screws on top and titanium screws on the chassis.........
Also, does the stock bumper plate and battery cover heavier then the carbon fiber plate from 3racing...? I just want to know as a fact.....