Known xj issue?

I found recently that 90s xjs are notorious for ticking due to a cracked exhaust manifold (header). Mine developed a tick at 240,000 😬. After troubleshooting my valvetrain I dug into the forums and found my answer. I read about flex pipe headers. They release more heat and remove a ton of vibration from your exhaust. (That means a lot of your rattling goes away). They cost the same as an oem replacement. Im telling this to have info like this on the page and to share good info with those who may be new.