If you look at my pictures, it looks like my exhaust is not centered. But I sure you it's centered side to side down to an 1/8" based off the frame rails. Most people do not realize or drivelines are not in the car straight. I believe stainless works centered they're exhaust off the frame rails and not off the driveline The rear floor is also different side to side, that's why the bends leading into my mufflers are not symmetrical. I think this is another reason a lot of guys had problems with the hanger brackets on the stainless works exhaust, I was one of them.