The cover had a crack, but this was only noticed after installation. It's my fault for not checking it out, so I didn't try to get a refund after installation. I took the car to the mechanic after being too disappointed to do another 4 hour labor intensive exchange. $1200 later my car is running great. Add what I paid for this item and you get the total cost of what it took me to find out I should check the part BEFORE installing it!