My car had just rolled over the 120 k miles and needed new spark plugs. Dealer want $800, got other offers as low as $600. Could not believe, so much money to change $90 of parts. The cost was not only thing that trouble me. In order to change plugs you had to remove the windshield wipers, cowl throttle body assemble and intake manafold. To get my cable thru the firewall, I ran thru the cowl and then thru the channel were fresh air is routed into the car cabin. long story short. I ended spent a Saturday doing it myself, other then 2 hidden bolts that were almost impossible to remove, the rest was pretty easy to do.