Just got off the phone with Doug Thorley Headers in Corona, CA and they have recently started bending headers for the 4.7L V8 Land Cruiser. Those might fit a 2005 4Runner but they need someone to bring a 2005 4Runner in to their shop so that they can determine the fit and configuration for headers and they will start to produce them if they can get the configuration correct. They make great headers and a set of tuned, stainless, ceramic covered headers is certainly a better addition to your 2005 4.7L 4Runner than another set of OEM's when your original manifolds crack. Doug Thorley Headers is located at 1220 W. Railroad St. in Corona or give them a ring at 951-739-5900. I would take mine in if I didn't live on the East coast.