Funny that you mention that.... Steve Coates was going over the exterior of the GT explaining things and noticed that it had a different exhaust without the fins. At first he thought it was the titanium exhaust after a quick glance, but quickly corrected himself. He agreed it was a slight change for 2018.
Beautiful. Congrats!!.
Like you here in Toronto Canada waiting for spring. Which is to officially occur in 55 days from now. I hope it comes sooner than that!