Description

This mod allows you to buy cybernetic implants from Doctor Usanagi of the Followers of the Apocalypse for humanoid companions, upgrades for Rex from Doctor Henry up in Jacobstown and upgrades for ED-E can be made by Veronica, so long as you pay for the materials. The implants/upgrades are the same as the ones you can buy for yourself albeit buffed slightly, as giving an NPC a single point in a SPECIAL stat is basically worthless, the upgrades and bonuses are as follows.

Strength: Increase Strength by 1, carry weight by an additional 50 and melee/unarmed damage by 5%. Cost: 4000
Perception: Increase Perception by 1 and increase accuracy and damage with explosive and energy weapons by 10%. Cost: 4000
Endurance: Increase Endurance by 1 as well as health by 50 and DR by 10. Cost: 4000
Charisma: Increase Charisma by 1, improved confidence in combat. Their more charming presence also nets you a 5% discount from merchants. Cost: 4000
Intelligence: Increase his Intelligence by 1 and providing a +5 to all skills. Cost: 4000
Agility: Increase Agility by 1 and boosts movement speed by 5%. Also boosts accuracy and damage with conventional guns by 10%. Cost: 4000
Luck:  increase Luck by 1 and critical damage by 10%. Cost: 4000
DT Boost (Sub-Dermal Armor): Increase DT by 4. Cost: 8000
Passive Health Regeneration (Monocyte Breeder): Heal 1 HP every 10 seconds. Cost: 12000 (yes, it's really this bad in the base game)

In case you don't know who the default companions are: Arcade, Boone, Cass, ED-E, Lily, Raul, Rex and Veronica.

Companions can only handle a certain number of implants/upgrades before there bodies/systems can't take any more, just like the player, this is equal to there base Endurance. For example Arcade can only handle 4 while Lily can take 8.

This mod is fully voiced with the correct vanilla voice for each NPC.

FAQs:

Someone: Is this compatible with X?

Me: Should be compatible with most things, let me know if you think you've found an incompatible mod.

Someone: This is too OP and/or weak!

Me: Probably? I tried to keep it as balanced for the vanilla game as possible. If you get one-shoted a lot in your game 50 extra HP and 4 bonus DT probably won't help your companions in a fight much. I've made the mod as simple internally as I could so changing stuff yourself in FNVEdit or the GECK should be easy if you want to mess around with it.

Someone: Why did you make this mod?

Me: I wanted a cap sink for the insane amount of caps the base game and quest mods try to drown you in, you need 384000 caps to be able to buy all the implants for every companion (not that you can do that), so mission accomplished. I also just thought the idea was cool.

Installation:

Installs like any other mod, manually or using a mod manager, I recommend the later for easy uninstallation.

I recommend a mod that lets you view companion SPECIAL and Skill stats, and make use of them, JIP Companions Command and Control lets you do both. You should have it installed anyway if you like good mods.

Uninstallation:

Installation in reverse.

Credits & Thanks

CMD13 for the original idea.
Xilandro and RoyBatterian for advice and troubleshooting help.
Hitman47101 for everything else I guess.
The FNVEdit team for FNVEdit.
Bethesda and Obsidian for Fallout New Vegas and the GECK.

One final note, don't put new variables in a dialogue result script.