Stupid question that I *should* know by now -- but is there an X-pipe included with Rob's downpipes? If not, does he supply one that works?

I know the C63 boys (with their dozens of exhaust options they're blessed with) all noticed larger gains and smoother sound with the addition of an X-pipe versus two segregated pipes. Seems this would be advantageous for us as well.

In my county, I'd at least need "fake" cats in the front... something for the inspector man to see. Anthony is lucky and lives in a "one stop-light town" and doesn't have emissions testing to fuss with