Thanks for the replies.

Ricky Bobby, thank you for the information.
Serb404. I am going to start with just the X type and eliminate the resonator. I am considering cutting open the rear mufflers and removing some baffles, as I have done in one of my 911s. If all else fails, I just will replace the mufflers with a better sounding orchestra. One step at a time.
Roman D I do not understand the following phrase:
I"d out you will ever shave the friction plate off but there are other things that will go bad with time and use....
I am replacing flywheel (New DMF), the friction plate, and the pressure plate(Self-Adjusting) as well as all of the other internals. (I am using factory OEM parts.) The CDV will be eliminated. The rear main seal will be replaced. The trans. Input shaft seal will be replaced. Etc.

Tonight I put the car on the rack, layered the floor with powder laundry soap, covered the floor with some thin absorbent and sprayed all of the bolts with PB blaster.
This weekend I will hang drapes and power wash the under carriage.