These are 2020 Nismo style fender wings, they are metal made same as factory fitment guarantee, downforce vents are made by plastic with hydro carbon dipped, clip on fit, flush finished.
Fits model year: 2008-2020 Nissan GTR35
Material: Aluminum on full fender, Plastic ion fender vents
Please note: They are NOT wider fender, they are same size as OEM factory fenders.