I just replaced mine due to cracks in them... I done some searching and finally decided I was wasting my time. I just ended up buying a pair that had the exhaust surfaced milled flat. That was my biggest concern. I paid around 140 for mine.
1995, 4.0, 5 speed YJ, SOA, TC drop, 8.8 swap with 4.10 and LSD, e-grills bumper, 33" BF all terrains on 15" wheels.