1996 3500 exhaust question

So previous owner installed a 10" stack protruding right through the dump flatbed of my truck. This renders the dump flatbed useless at this point. And very annoyingly loud right behind slider back window. I plan on removing it and bringing the exhaust back to its normal level. My question is if I do that will it hurt the performance of my truck? And what route should I take with exhaust? Should I go back to stock? Is there a better route to take that will keep or improve performance or gas milage? Thank you for your input.https://uploads.tapatalk-cdn.com/201...e7c0aa12fe.jpg

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Hey bud! No sir you will be just fine placing the exhaust to it's normal exit point.

I would just install the 5” Flo Pro TBE :cool: