Just an FYI. My pieces were all cracked like everyone else's. I had the Engine Malfunction - Reduced Power message again on my car and it was because of these broken pieces. There ended up being water in 2 of the Spark Plug holes and I was getting misfires. $200+ at the dealer for the partition pieces and install.
If you have broken pieces... at least take a chance on the $45 ones! It will save you a lot of money in the future!
