I have a nice NOS "Y" pipe that I cannot identify from my parts books. I pulled it out of an old Olds dealer 30 years ago. Can anybody with parts books help to ID this pipe? Part # says on the metal tag on the pipe: GM1 556326 I have found numbers near this for parts around 1949-1950. Can't find this # in my Olds parts books.
Thanks,
Joe Varley
AZ
