The hood on all 2003-2008 Nissan 350Z (Z33) models is sealed using two pieces of weather stripping. This particular seal can be found directly behind the Front Hood Seal, and attaches using plastic push clips that over time can become brittle and break. It is also common to see these seals tear preventing them from sealing against the front bumper properly. This allows water and other debris to easily enter the engine bay. If damaged, these seals should be replaced to help prevent water from reaching critical electronic components.