Originally Posted by Modshack

Whatever.... Cognitive dissonance - Wikipedia, the free encyclopedia

From "Betty's site:

Q: What components does this set ground?
A: Betty's Garage wiring sets ground the negative battery terminal to the chassis, the engine block to chassis on both the right and left cylinder banks of the engine block, and both throttle bodies to the negative battery terminal. Only one throttle body on 1st generation G35s because they only have one.

Uhhhh...exactly what my routing does. TB to chassis to Battery. It makes no difference to skip the Chassis part..You clearly do not understand the concept here..