Ok guys, here it is, i am breaking in my stock 7 turbo, mated with a 0801 GO pipe. At this point all i can say is this pipe is IT i have 7 tanks through the engine and already the bottom is feeling pised off, i'm not haging on the top yet but it is already showing more and more, GO hit it on the head with this pipe way to go guys this one is the ticket, and man does it sound good