what is it? is this an aftermarket upgrade for the 4th gen TB? if so where can you buy one.. i know little about it.. anyone know of where to go for a throttle body upgrade?

 

a pathfinder throttle body....a good guess would probably be that its the throttle body off of a pathfinder.
The years people go for are like 01-02 or something. Its over kill for your stock 3.0 motor and you'd need an adaptor plate to make it fit anyway.
tb is usually 150, adaptor is about 125.
your not gonna get any gains from upgrading the throttle body on the stock motor, lets put it that way.

 

i never heard of this before, this must be something new. i am very interested to hear about this new modification.

 

Since you're too lazy to search
http://www.google.com/custom?domains...ORID%3A1&hl=en