I'm shopping for a set of valve cover gaskets for my 06 N/A roadster. Are the part numbers the same for the N/A motor and the SRT motor? I found part numbers of 05097104AA (left side) and 05097105AA (right side). I assume they are all made of the same material? I know I can get them from Needswings and I may, but I was just looking for confirmation that these were the correct part numbers and material type. I want to make sure the material type had not changed over the years or something silly like that.