We're heading to Vancouver, BC for the motorcycle show later this week.
This will give us a chance to share a bunch of photos of 2013 bags on bikes, with details to help answer questions.
Heat Shield mounting is identical - stainless steel clamp included:
2013 Great Basin Saddlebag dimensions are about a 1.75" deeper (measured across top, from front to back). This gives the bag extra volume, but has no effect on how it mounts.
Stay tuned . . . !