I had my GTS done professionally, by a racing graphic artist outfit. They did a great job, and convinced me that doing this is not all that easy. Their quoter originally quoted a special run of vinyl that was dual 8" rows of vinyl with the correct separation between the two. Sounds easy huh. Just line up the vinyl and put down both stripes at once, with the correct separation. But, the expert installer called once I gave the OK, and told me that there was no way they could actually do it that way. The curves make it difficult. I did not watch the install, as it took two business days. So, I don't have any tips for you. But, I am glad I did not try this myself. BTW, the badge on the front fascia was slightly off. They had to move it slightly.