3.5" y pipe
#3
ARH makes them. 3.5 merge. I have one. I then have a 3.5 to 3 inch reducer cone on end of Y with a 3 inch bullet.
When I upgrade the valvetrain, I will cut off the cone and have the 3.5 inch outlet.
When I upgrade the valvetrain, I will cut off the cone and have the 3.5 inch outlet.