No matter where it goes,it will be trying to enter a pipe already full.
..if anything logic would say it will create interference.Aside from that
the exhaust can't get out any easier or quicker?
And yet they work and have been documented to do so..... The alternating pulses create a vacuum on the side not firing so that the next cylinder in sequence has less resistance in the exhaust. A bit oversimplified but the basic idea.
