In 2002, Epiphone began using Grover tuners on the G-400. In 2004, the truss rod cover was changed to the current shape with "SG" printed on it. In 2005, the logo ink stamped on limited edition models was changed. In 2009, the G-400 (along with several other Epiphone models) made the switch from chrome-plated hardware to nickel-plated hardware. Also, the neck was changed to a "slim taper" profile. in 2012, Epiphone introduced the G-400 Pro with Alnico Classic PRO™ 4-wire humbuckers.