I suspect that DC designed the exhaust pipes in concert with the engine's requirements. Sometimes, the concept of "more or bigger is better" actually "backfires". That said, I think we need some data on backpressure and air flow of our Crossfire's engine.

Usually if we upgrade the intake airflow characteristics of the engine then we need to increase the exhaust's capacity in kind IF it did not have headroom for the additional flow.

Also, from what I have seen, many dual exhaust systems do have an "X" crossover of some kind.

To that extent, our Crossfire exhaust has a large X crossover : 2 to 1 to 2

I wonder what the SRT-6 exhaust system has in terms of changes?