Quote Originally Posted by matt5112 View Post
80 000 miles seems to be the "recommended replacement period."

All depends on who you're talking too.

In all honesty, shruts age like O2 sensors and tires, they slowly get worse and worse. Difficult to notice over time the decrease in performance.

How many miles on your car?
115,000 miles, just broke in

It was bought with 74,000 so I am pretty sure they are factory

Thanks