i did exactly as darkside did (but used a real heat gun). It was a major pain in the ass because the pinstripe consists of:

A: The color part
B: The Glue

Mostly all that came off easily was the color, the glue you gotta use your nails :a: and when its all off, use goo-gone on the whole thing and wipe it off. Took me about an hour to do it all, but it was damn worth it, my car was gold/silver with a gold pinstripe :barf:, now it looks .

Hope this helps and good luck.