I don't think I would wire wheel it.
I think you will getter better results with the actual bumper and trim paint.
Here's a couple pictures of mine.
Just remember that it is all about the prep work. You can't cover up obvious issues with MORE paint.
I sanded mine down with a 150 then finshed up with a 400, taped it off and shot it with light even coats.
[B]VRBOTEN (Forbidden) 1997 Jeep Wrangler TJ
UPROAR 1985 Porsche 928S Track Car -Supercharged
VLOCITY 1989 Porsche Carrera 4 (First All Wheel Drive 911)
UNCLE CHARLIE 1929 Model A Ford (Grand Champion at the Henry Ford Museum Invitational Show)[/[/B]
2112 Ford Explorer Limited -18 Ft Aluminum Trailer
[COLOR="black"][COLOR="Purple"][FONT="Arial Black"]Video of me in my Porsche 928S At Mid Ohio 2008