Do you remember what part number the Dynomax dump was?
http://www.dynomax.com/ecat/pdfs/ssdumps.pdf
I'm guessing it's 88340 since it's the only 2.5" unit. I'm just not sure about the rest of the data on the chart.
I can't see well in these pics here on my crappy work come but, is yours all welded in or did you clamp it together?
Other than the Dump and the downturn, is there anything else I'll need to install this?