I did mine myself because I knew nobody would be as careful as I was- it really wasn't that hard. No bubbles or trash in mine- well, 2 small bubbles at the front edge of the thin stripe on the hood.
It sucks that GM didn't do this on all of the cars (install the stripes).
For those that DIY, the trick to the hood stripe was to line up the back edge- the front will fall in the right place.
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