Straight six with Dual Exhaust........

I am planning to do some exhaust system modification to my straight six (200). I see these performance headers at Clifford Performance. Header would divide single 6 cylinder output into two 3 cylinder outputs.

Should I get Ceramic Coated Headers ? .........

Also I have heard (including on You Tube) variations on the type of mufflers to use...............flowmaster 40's , dynomax super turbo, etc........

I also see an option for installing an "X" pipe in the system......

If I do go ahead.......I would also be installing a port divider........

Any suggestions for a exhaust set-up ???