If I didn’t need the space my Helmholtz resonators were using for one of my audio updates I would have kept the custom 3” I built myself…but it had to go and Thermal had the best price at the time. I loved the AWE 4.5” tips so I grabbed a pair of those off eBay to throw on. Knowing all the 3” systems are loud with high flow downpipes I installed a pair of Vibrant Ultra Quiet resonators when the exhaust went on. I never even heard it without them but I do like how it turned out and would definitely do it again.
		
		
	 
 @UNBROKEN : I am trying to go with something like the Borla Touring mufflers that were originally installed by SHELBY on both of my Shelby GTE's (circa 2016-2019 build years). ZERO Drone and mild to moderate sound, great for touring or driving long distances. Unfortunately, Borla does not make the Touring Muffler now and they refuse to sell me just (2) two of their "Axle Back" S-Type mufflers (that way the rest of my system will be the stock Resonator Delete H-Pipe).  
Thinking out loud, where does one buy a replacement muffler to any system (Borla, AWE, MRT, Flowmaster, etc,whatever)  that was either damaged in a car accident, becomes defective, rusty, or whatever?  It would not make sense for me to have to pay for an entire new system just to replace one defective muffler or in this case, to get 2 new mufflers only.  
Maybe I am looking in the wrong places because the true Axle Back muffler systems are not selling on the internet (except the Gibsons which everyone seems to say stay away from due to drone and reliability issues).   When I did the Resonator Delete, H-Pipe upgrade, the muffler shop told me to find what ever I wanted and they would just do the install. They did not want to get involved with ordering anything for me.   
Looking forward to your comments and recommendation(s).