Terry is correct. Govt standard says 8 years/80K miles, and I am on my third and last set...nest time they get gutted, and new underbody cats go on (gonna do an exhaust when it happens)....my car has no warranty left, so I have no recours but to get rid of crap stock parts....and maybe a new engine eh?

Just call me Judge.
People suck.
Life begins at 170mph...until that point it is just boring.....