I have the JOM grille, the bottom section is metal, like standard, whereas i believe the FK one is plastic and i have heard they are not always a great fit/quality... Mine seems fine and im pretty happy with it.... also you can fit the VR6 badge back on the JOM one if needed, I cant comment about the Dectane one though as i have not had it or heard much about it... and as for the Mattig one i think it looks a bit weird, but that's person preference....