This is excactly what I ment by common sense. Think about what you just said and think real hard .Why would it flow through the H at all ?
The flow has no bend on and H. The X has an extra 4. The H pipe only connects the two for equalizing pressure. The exhaust does not flow through the H at all unless it needs to equalize. The X pipe, it has no choice it has got to flow through those four extra bends whether it wants to or not.
Stand both exhaust on end and pour something through. The H will go right down the pipe you pour it into and come out the same pipe. The X pipe if you pour it down one it will come out both. Its like having a car with duals that go to single and back to duals. I don't care what anyone states it is common sense.
On the new police cars they faced the H back at an angle on each side so it can't even enter the crossover pipe from flow dirrection. It is a pos. pressure pulsating from one side to another. Relieving the reverse pressure of the exhaust back to the motor.
