I looked under the hood of my friend's camry and he had his negative battery terminal grounded w/some clean 4ga to his strut tower. Is this better than the factory ground? Cuz I've got some 0ga lying around that I can use to do this... On another note, where does the Hyperground kit tell you to ground the battery terminal?

 

as long as you get a solid connection at the stock location, I'd use that.. the shorter the better..