Not really sure about the bumper, but I know some about the hood. It depends on what year your car is. I believe that if it is a MY96 or older, you would need to replace the headlights and grill. If it's a MY99 or newer, I don't believe you need to do that. As for between those years, I'm not really sure, but to put the RS hood on an L, you need the headlights and grill from an RS, and I'm pretty sure that some years of the L came with those. Just not sure what year that started, although I think it was with the MY99 cars.