HP/Torque gains on HFC with invidia exhaust

No idea.. if you go on the infiniti prts site and look up any G37s 7AT you'll probably be able to find it.
I think I'm on the right trail, found a number in an older post.

Cheaper if it's Nissan$!

To be continued....

Is there anyone else that's upgraded their differential to higher ratios? Or limited slip??
 
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