I honestly can't remember, You can use a dremel and grind off the pegs smooth either way, I did it on my front A badge because I filled the holes in at some point then decided I wanted the badges back.
I used simple green, Couple of toothbrushes, Carb cleaner for the thick grease, Some soft steel wool and about 45~ hours total spread out over about 2-3 weeks time.
Sadly it's not that shiny anymore, When I put new gaskets throughout my exhaust I'll probably clean some more while the header's off.