Greetings Guys; I read them all & WOW some nice stuff! Some where out on the internet Magna flow has a 30 minute video describing the advantages & dis advantages of the "H & X" pipes, Also true duals. It will answer all your questions. I elected to go with true duals, less cost, easer maintenance, less weight & old time sound. Ridge mount behind the x member & removable section at the header flange. Open headers, no wiggly exhaust system when your out on the track! Ole' Bob.