I recently installed a replacement exhaust manifold/catalytic converter which came with a sandwiched ceramic type gasket. I heard that those gaskets are prone to failure but installed it anyway. I got 6,752 miles out of the aftermarket exhaust manifold gasket before it failed. I reinstalled the original factory gasket and all is well again. The replacement manifold from RockAuto looks just as good as the day I installed it.
![](https://i.ytimg.com/vi/P96Fn3rPxgw/maxresdefault.jpg)