Well, I picked up my Mustang from the exhaust shop this afternoon. Let me tell you something. When I fired her up I almost wet my pants. I am running the Clifford dual out headers with 2 turbo mufflers. This car does not sound at all like a 6 cylinder, but more like a beefy V-8. Even the guys working at the shop said they were impressed by how nice it sounded. Ohhh, it sounded soo good.