The 350z Rear Upper Control Arms.
The purpose of an adjustable upper control arm is to perfect the rear alignment in ways that the other arms are not able to. This would include track width, anti-squat, bump steer, and camber. the arms are constructed of alloy steel and made to be stronger and more rigid than the factory aluminum arms.
adjustment range is -20mm and +20mm from the original length.
this product includes everything needed to install