Originally Posted by Bappe
how much weight can be saved if changing all screws from std steel to aluminium?
need to shave off 25g on my car
Do you need to lose the weight to get down to the minimum weight? If so I wouldn't worry about it too much. I think you will notice it more if you eliminate as much weight as possible up high by replacing top deck screw and such and not worry about the screws in the bottom of the chassis.
To give you an example though. On my T4 '14 I got the titanium screw kit from gravity RC. It replaces all the screws above the lower chassis with titanium ones. It's 47 screws total and saves 9 grams over the stock screws. But the bigger benefit IMO is it lowers the COG.