[DGP1985]

IF it's like mine, (just changed it :P) it's just the torx bit that holds it and that "giant" nut came of with a 24MM wrench...but you need two of em or at least something to hold the FPR properly while you thignten it or else your just going to destroy your fuel rail...(or overbend it or some other kind of thing you don't want happening to your fuel rail)