Welcome to the forum! We carry both B&I and Remin dash kits, and they are very similar. Brands by both dash kits are custom made in the U.S. The only difference is the color/finish options, which differ from brand to brand.
The only difference that may be important to know about is that Remin can send you out swatches of their materials (up to 4 swatches), and B&I does not have this opportunity.
Here is the link to all dash kit options we have for your 2016 Challenger: 2016 Dodge Challenger dash kit options
Hope this helps!
I tried the B&I small kit in Rosewood. The install is easy enugh and the fit is OK, however I wish they would include the piece for the side of the console that the Remin large kit includes. I am on the fence about the look, but the console to me looks unfinished. I suppose this is the reason that the site pictures only show a single view from the passsenger side.