I like the look of your stacks. In your picture,are the rags hiding your cab mounts? If so,great. If not ,you might want to incorperate something to brace them at that height as they will vibrate and sooner or later crack. I would also suggest you raise the turnouts almost a foot to get them up into the wind. That's for two reasons, it gets the racket further from your ears,and secondly,greatly reduces the chances of exhaust reversion back into the cab at low speeds. Hank