Hello everyone. I just bought a 2011 HD and there is a black box that is mounted on the driver side firewall that ties into all the injectors. Has anyone seen one of these or know anything about it? My dad has a 2013 and his doesn't have this box. Also my truck gets 12 mpg easy driving. I know this is NOT a ford factory part per the master ford tech that was doing some maintenance on it the week i got it. any help is appreciated. thanks