Purchased the Ford-specific Focal drops-ins from the outlet (well worth the outlet price) as well as the stealth behind the seat sub kit with full sound deadening and block offs. The install took a weekend because the door soundproofing is tedious (not at all hard), but the end result was VERY worth it. I may amp the Focals in the future, but they already sound quite a bit better than stock and the sound deadening / block off plates made a world of difference. The subs hit surprisingly hard for being 6.5" and they go fairly low for house, rap, etc. Country and rock have a great punch, although some rock music that has softer bass notes could use a bit more oomf... but it's a massive improvement over stock B&O system.
Had an issue with the sub box being damaged in shipping and although it's taken a while to get a new box shipped out, it was a no-hassle process. They are very good to work with.