The converters were good only problem is that they don't come with new bolts, and typically when you remove the old ones, the bolts are rusted or they have cut off, So get new bolts, and make sure they are at least grade 8 or better. I have put 1,300 miles on them so far, but you gotta change Your oxygen sensors as well, Bad oxygen sensors are the main reason why converters fail. Hope this helps. Don't forget the gaskets you will need them to keep outside air from getting in the system.