Welcome to the forum. Congrats on the new redwood. You probably don't have the exhaust brake unless you had it installed. I have a 09 F250 with the 6.4L diesel in it and love the power it has. May your new 5er bring you many happy camping trips.
2014 Chevy Silverado 3500 Duramax SRW
2014 Palomino Sabre 34REQS
2011 Crossroads Zinger 26BL --sold