I haven't noticed any issues with the Remus exhaust burning the turn signals. I have the DP led ones that are smaller and never noticed any kind of heat damage. I recently got and R&G license plate holder and now they're slightly up from the OEM position so heat damage from the exhaust is not a concern for me.
Checking some pics on the web, the Shift Tech exhaust seems to point slighty upwards compared to the Remus or OEM exhaust and if it's already burning your turn signals it probably gets in the way of most saddlebags you might find.
So far I haven't noticed any heat issues with the bags either. As you can see on the pictures on other comments above, the SW Motech support bars hold the bags above but also outside of the exhaust tip, so it's harder to get them burnt like other bags that just hang freely and can swing in front of the exhaust if not tightly secured (it happened to me with Cortech bags, they're very well made but I wasn't thorough while securing them and they swinged towards the tire and got a big hole at the bottom)