I don't see any benefits to them on a Jeep myself. Muscle car is a different story. Headers can be tricky for an exact fit and can cause heating issues in engine. Just my experience with headers in general.
After finding both manifolds cracked, I ran the Gibson short tube headers - pulled them off after a month and installed mopar oem
the Gibson were incredibly hot even with all the heat shielding. I had heat shields on the plug wires and then ordered a set of custom wires with different angle plugs because the heat kept melting plug wires.
I could never get the engine to run properly with the headers.
I originally ordered Crown replacements through NAPA but the finish quality was so poor and I exchanged them twice before ordering Mopar OEM - check prices on stevewhiteparts.com I found them to have the best price and free shipping, they also came with the proper gaskets.