Since it takes quite a bit of skill to install a bionic, I’m thinking they’re at minimum the cans from Deus Ex and you’re replacing the medbot. More likely, you have to do some amounts of the install yourself, but perhaps the can has nanites or somesuch to assist you with the difficult bits (someone posted about installing the Expanded Digestive Tract at one point: the can sucks out your old intestines through the navel, IIRC).[/quote]
The reason I have to point out that they’re not Deus Ex nanite installs is
You can disassemble and build bionics from scratch.
Yes, they’re all the same size and weight, has anyone stopped to consider it might have just been something that was added and never rebalanced? EG “I have 60 bionics to add, better just make the volume and weight the same for now”