This is the complete Aluminum Driveshaft for the G37 platform, its weighs only about half as much as the factory 2 piece shaft. It's a 3.5" 6061-T6 aluminum shaft with an aluminum rear adapter plate that is a direct bolt on. By removing the factory 2 piece shaft the car will lose the excessive motion caused by the hanger bearing moving up and down when you step on the gas. This will make the car react faster to throttle input and make the car feel more responsive. Rated to 1000HP with a 1-year warranty.
Please Note: For 2009-2012 7-Speed Automatic ONLY
For 2008 5-Speed Automatic see part number INSH3-A / INSH3-C