Heeeeeyyyy... Sorry to zombie a super old post like this but I think it's necessary to keep everyone in the loop that is looking at investing in an exhaust system.
Less than 2 years of ownership and the muffler went bad :crying:
Started developing a weird noise slowly over time till it got too...
Figured I'd drop my experience here incase it helps anyone out. I also have the RR tire carrier and hinge kit. When it got cold out I also developed a rattle, but ended up luckily not being bolts. For me the issue was solved with the ol' rubber chair foot bump-stop extension.
The original listing I bought from is gone so I hit "Buy Similar" and it took me to this link, hope this helps: https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F233370352154
Ah yes, my bad. It's been so long since I've done the swap I forgot the Sahara grille is in multiple pieces. As for your second question I'm not sure. I just bought one off eBay that claimed to be a Rubicon one and it fit fine
Lucky for you it was downpouring snow and slush while I was putting these on in the garage. It was the first test I got to put them through and I have no complaints! Tore up the slush, and now I've gotten a couple days of driving in multiple conditions thanks to the Illinois weather being crazy...