Spec R

That purple-ish piping you see is from Apex-i. I picked up the S-bend pipe and the Resonator B-pipe from their garage sale a year and then some back. The rest is custom mandrel bent 2.25 inch piping (you can see it if you look closely, the piping is black) to an older (mid 90's) Ultra Flo muffler.

Essentially its the same setup as your DC, as well as Comptech, since they both used UltraFlo Mufflers, or muffler internals. As long as the mufflers and resonators are NOT louvered core, and the piping is mandrel bent, I dont think you have to worry about your DC sports setup not flowing well.