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WAS: Alive but whining NOW: Mixed year car exhaust



Mark F. wrote:
> I guess it also depends on your driving habits.  Anyone
> else have some experiences to relate on the longevity of the various
> exhaust kits out there, both stainless and aluminized?

It really does depend on your driving habits.  Lots of short trips will 
allow water to condense, collect, and corrode the exhaust from inside. 
Longer trips where the whole thing heats up will boil off the water as 
the car sits once you turn it off.

Dips and bends will be where it collects in addition to within any 
mufflers.  Some people drill small holes at these low points so water 
drips out.  Of course northern climes with external salt will accelerate 
corrosion and stainless will resist corrosion, but most exhausts 
deteriorate from inside because they stay wet.