Just changed my valve cover gaskets. While I was there, changed the upper plenum gaskets, installed new plugs and coils from ebay. Get my car back, it's misfiring! The car has 161,000 miles on it. So I had to go back to the garage and have them re-install my original coils...good to go! I was freakin ******. Thought I was doing a good move. I've run the aftermarket coils on my lincoln LS before with no issues. For some reason, I got screwed this time. Anyhow, the gaskets were like $32 for one side and $40 for the opposite from ford. Don't forget to order the o-rings that seal the spark plug holes. I forgot and ordered them after in case it would leak...nothing. So if someone is in need of a set, I'll sell em to you.