For those of you running Dynatech SuperMAXX headers and midpipe, the midpipe is 2 1/2" from the long tunes into a 2 1/2" Y single outlet. Did you just run back with a single 2 1/2" pipe with single muffler, or did you run duals by not using the provided Y after the midpipes and use an H or an X? I like the idea of the flanged LTs and flanged midpipe, but I am surprised they don't offer a dual outlet.