Was told that they finally came out with a new injector design which is based off cat style injectors. These are straight from bouch and come stock 40 over to help lube the injector and make it last longer and is suppose to increase fuel economy by 2mpg on stock applications. Waiting on a set but they are stuck in customs. This is all I know not sure if anyone else has any more info. Just been waiting on a set for awhile now to try out.