If its aftermarket, there will probably be some fitment issues that need tweaking. Usually mounting holes don't line up 100%, or the gaps between panels are not as even. This is the same for most aftermarket body panels. I worked in a body shop for a while, so I know these fitment issues. I would spend the extra and buy from a dealer. The front bumper cover part number is:FBM221EA1H
Bumper Cover for 2010 Nissan 370Z|FBM22-1EA1H : CourtesyParts | Genuine OEM Nissan Parts & Accessories