GET A X-OVER!!!
Do this:
1) With the car cold, rub some red crayon along the bottom of the pipes after the old "Y" split about a foot or two back.
2) Start the car and run it around 3k RPM's.
3) With someone watching the pipes, have them notice where the crayone starts to melt first. They should see distinct pulse points. Using a punch or awl, scratch where they are.
4) On both pipes, locate two marks that are relatively close together. Make a crossover pipe at those locations. It can be an H, but if you can make an X-pipe, that would be better.
That should make your sound even better.
Get on it man!!!
