Ok, I got the QuietCrawler kit installed today. I had planned to do it yesterday, but there was an incident with my daughter and the neighbor's dog, so we spent the day at the ER.
She's doing well now though.
Anyway, first impression: I like it, it sounds really nice. Definitely sounds better than I expected from a little V6. I had to cut the short piece of pipe that goes between the muffler and resonator as short as possible, to get the two to butt up against each other, and with the exhaust spacers I installed with my lift, that front section was a b**** to get on. In hind sight, I should have cut it down a bit. That would have given me a little more room for the piece between the muffler and resonator. But oh well... I have the Rock Krawler 2.5 X-Factor, which also moves the rear axle back about an inch. It was a tight fit around the axle, but it seems to clear it well enough. The only thing I'm not quite so fond of is the tip. It is right up against my stock bumper, and I also had to remove the tow hook so it wouldn't be hitting it. After my test drive, my bumper was a little melted, so I'm going to have to do something about that (not to worry, I had planned on buying a new bumper, with my tax return, lol). I may cut it short and leave the tip off, I'm not sure yet.
Here are links to a couple before and after videos, just for sound comparison. I'll get some pictures or maybe a video of the whole set up later. I kind of ran out of time today, lol.
https://youtu.be/zgp0nA6RPGs
https://youtu.be/KVBQnq3KrCg