I am reading online about bulb cross references. I am looking to convert my existing Fogs on my 2009 Ralliart to HID and my Fogs say 9145.... I read on three sites so far that H10/9145 are interchangeable names for the same light connection. Also, will i need to upgrade the stock housing on my Fogs (forget projectors) I mean for melting purposes? Or are the stocks fine with 35w HIDs?