You want the ones from HD ... part#57400146A. The ones from street-glide.com and JES Custom Accents are both fugly and more $ than the HD ones ... hard to believe but true. I just put a pair on my bike and LOVE them! Mine are mounted as far back as the holes in the bracket allows and DO NOT touch at full lock left and right so no need to bend or tweak them. You will need blue masking tape, 2 1/8 holesaw, a couple round or curved files and a dremel with some sanding drums.
Start by taping both up completely so you don't scratch them up accidentally and also protect the finish from shavings/chips while drilling. Now lay them both face down (concaved side) and measure 2 3/16" from flange and 1/2" down from top edge at your 2 3/16" mark and punch both good so your bit doesn't walk. I drilled a couple smaller pilot holes before breaking out the holesaw. Now just bore through with the holesaw nice and slow. Once you're through you can shape up your cuts with the files and final polish with your dremel. You could dab some silver/chrome paint on the edge but I chose not to since it would be a pita to be neat about it. I instead polished the edges real nice, waxed them and will keep an eye out if I see surface rust starting to form it will clean off easy.