OK, I've been looking for a while for some info on mounting some hellas on the factory bumber. I know there are some out there who have done this. I'm no fabricator, so the info I'm looking for is more of a drill and mount type install. From what I have read, it looks like the grill is not the place to mount them. so just below, is this a suitable place? is it sturdy enough to hold them tight, no wobble? Does anyone have any pics of this instal? One last thing, any noticable differences between 500 and 500ff?