I was trying to narrow down the prefab direct fit options (B2Fab Magnaflow, Carven, Flowmaster FX and Flowmaster Outlaw) for my Rebel. Can save some major $$$ by going that route over the full catback. I work with a guy who's in a 2017 1500 5.7L who picked up a Magnaflow direct fit off Craigslist for $65, and it sounds really good. He said it sounds better now that the packing has picked up some resins. Only drone when he's pulling his camper.
Meanwhile, my buddy who does fab work in his spare time offered to pitch in - so all muffler options are on the table. He too said he likes Magnaflow over Flowmaster after it's break-in. His overall preference would be Spintech though. I don't want anything annoying the neighbors. Much more interested in deep throaty tone over volume - especially with my eTorque. This other guy at work has a Flowmaster catback in his Challenger and it's friggin loud (although minimal drone). Has to be Super 10, or maybe Outlaw.
Going off of this chart and this Flowmaster comparison video, I'm not really interested in the Outlaw as it's advertised as their most aggressive model.
Flowmaster Product Line vid
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This is a good video to compare the tones as well, but won't be accurate final sound since it's a completely different setup:
Flowmaster Comparison
Based off of this, I prefer some Flowmasters and Magnaflow over Carven due to gurgling and tone:
Carven install (18:15 for startup)
Seems Borla and Corsa are a bit more than what I'm after anyways, so I'm leaning towards direct fit Flowmaster FX or B2 fab's Magnaflow. I do like the Super 40 and the 40 Delta flow in that vid, but I'm leary as it's bound to sound completely different in a 2019 Rebel.