Should have posted this earlier, before it got dirty again! Happily I didn't make it a "4.9i", but had to think about it before I stuck the number on the car. The 6 is much shinier than the 4 or the i, but the Louisiana elements should fix that in short order.
Thinner 3M stuff works great so I need to redo the other side, where I used the thicker stuff that came with the used badging.