SPL Parts Front Upper Camber/Caster Arms 2003-2008 Nissan 350Z / 2003-2006 Infiniti G35 Sedan / 2003-2007 Infiniti G37 CoupeSPL Parts Titanium Series 350Z Front Upper Control Arms (FUA) for the Nissan 350Z and Infiniti G35 are designed with dual chassis mount adjusters, providing camber and caster adjustment while remaining fully attached to the car. The revolutionary slotted arm design does away with the need for bulky, hard to reach jam nuts. Simply turn the hex cap Double Adjusters to set the arms to their desired length, and then lock your alignment settings in place