My exhaust manifold cracked at 165,000 kilometres.
This has been an excelent car, as all I have had to do to it was keep up the regular 5000 kilometer services and replace the manifold with a set of high performance extractors.
For my own enjoyment I have replaced the standard exhaust system with a twin 2.5 inch stanless steel lukey system.
I have also replaced the standard air cleaner box with a power stack pod filter, because a standard air cleaner replacement was going to cost me more.
The exhaust manifold only costs 35 bucks from the local exhaust shop to fix, so really, you're looking at next to nothing to get that fixed.