Comparison LT's with true duals versus x-pipe?

Has anyone performed a comparion between a true dual exhaust versus an x-pipe set-up with true duals?

I recently (yesterday) switched from a 3" dual exhaust which transitioned into a 3.5" single chamber flowmaster mufflers then dumps to a 3" x-pipe set-up with 3" magnaflow straight-thru mufflers then dumps.

The engine revs much faster and its idle has increased by a few rpm's and the "butt dyno" says it feels faster too.

Has anybody performed a comparison between these two basic types of systems? what were the results (dyno numbers or track numbers)

thanks for any info

The addition of a crossover does typically increase torque over a range of RPM vs no x-over at all, so your butt-o-meter is probably right.