I will be able to answer you question in a week or so. I got an ebay deal of the year 3 days ago. A guy was selling what her reported to be a stock 04 Exhaust system including cats, headers, heat shields, and the exhaust itself.
In looking at the pics on the auction site, I noticed a couple of things right off of the bat. First there was no crossover pipe. Next thing was the tailpipes had chrome ends on them. I spoke with the seller and had him send me some more pics. Just as I had thought. It indeed was a MOPAR performance exhaust complete with Borla mufflers.
Best part about it is that I paid 245.00 for everything. I plan on gutting the secondary cats and putting on the exhaust. I will advise on ease of installation. Should be fun as I have no instructions.
Stay Tuned.