Am I imagining things or do the mirrors look larger than stock? They also look like they sit a little higher.
The Performance Machine mirrors have a slightly different shape and may be a tad larger. The shape may make them appear to sit a little higher but if so, it's only marginally different from stock. They fit the bike perfectly. The biggest differences: They are machined aluminum and much thinner than the HD plastic casings; they are not concave (or is it convex?) mirrors so objects appear natural size/distance; they look awesome on the bike!

If you're interested, shop for price. All the catalogs list them for $249, PM website sells them for $149, and ebay seller sells them for $110. . . . . I am very please with them and they are still somewhat uncommon so everyone doesn't already have them.