2 1/8" TTI Headers

I am about to pull the trigger on a set of the Mazzolini step headers for my 540. The dyno place should be up and running soon so maybe I will do a back to back comparison between the Hustler 2" and the proparts step headers.

You planning to run a 3 1/2 inch exhaust system? I can't find the parts needed to build one with an X pipe in the catalogs. To me 3" sounds a bit small - my 416 has a 3".