..the title pretty much sums it up. How accessible are they? How long does it take to change all 6?
TIA.

MP-In-The-Wind

 

...I do know that the plugs don't have to be changed for 100k, but SOMEONES bound for have done this on a 2008 G37 by now!

 

It's on the FSM in section EM15-16.

Infiniti USA - Manuals & Guides

 

I did it right after I got it. Just part of my initial "used car break in". The car had 35,000 miles on it and the old plugs looked just like the new ones I put in. It's pretty simple and I already had them so I used them.

Take off the cover, remove the TBs, then pull the plugs out, new ones in, and button everything up. Oh it helps to have a magnet on a stick (or string or whatever) to get the plugs out if you drop one.

 

..I had read the manual on how to do it...but it really didn't give me an idea on how complex or time consuming this would be. Thanks again.

 

Took me about an hour, start to finish. Not complex at all if you're a little bit mechanically inclined. Only took me an hour because I got three phone calls while working on it, and the neighbor walked over to check out the new car.