I used a banks torque tube header, and was very impressed with it. Fit was very good, as was worksmanship. I don't know how it is standing up, as I sold the jeep a couple of months ago

... But when I sold it, the header looked like new and it was running strong. Still kept the stock 02 sensor location, which on my 97 was just below where the header bolts to the exhaust pipe that loops the oilpan. And even if there is a problem with the header now, it had a lifetime warranty, so I wasn't worried about it at all.