Thanks for the love guys! The stock driveshaft on the G37 is a two piece steel design. The 370 has a 1 piece carbon fiber from the manufacture. It was to free up some rotational mass and get more power to the wheels. G37's stock shaft is 32lbs.... this brings it down to half that weight when using aluminum. Something the Z doesn't need.
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'08 Infiniti G37s - Forced Induction Fed
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