Most oem stuff comes with smaller tailpipe than the header pipe.
I have always used the same size all the way , with good result.
Dubz, telling a member on this board that his opinion is a lie is a little strong. I think that would make a sore spot for me.
69 ss rs full custom camaro 98 ISCA grandchampion
69 ss rs bb camaro wifes driver
66 Elcamino 350/all dz parts,ac,windows,loaded,my driver
69 ss chevelle bb conv.fresh frame off
26 T sedan street rod