I know that the 95's got a Vented Opti, how much reliable does this make it over the 94 and 93? How much longer does this increase the life of the opti, if any? I couldn't find a thread specific to this topic, if there is if you would point me to it that would be appreciated.

 

I don't know that you will find any hard data saying the vented is more reliable (some non-vented optis have gone 200k-300k miles). It does make sense that the vent system should make it less to being plagued by internal ozone contamination and therefore more reliable.

 

Useful, I still have origininal plug wires..