I outlined some quick installation tips, some pictures and a fly-by vid from a distance of the MBRP Turndown.
http://www.fordraptorforum.com/f65/yeti-2013-raptor-build-17928/index3.html#post325477
http://www.fordraptorforum.com/f65/yeti-2013-raptor-build-17928/index3.html#post325477