What will make my 350z rear be able to handle the torque of a twin turbo? Im looking for any modifications that will make it stronger and more durable.

 

Well to me at stock kit levels, only thing I would suggest is a clutch type LSD.

But if you go to higher boosts/power then upgrading axles seem to be a safe bet. Sharif@forged has a couple of upgraded axle options.

If that is what you mean by your post.