Has anyone tried/considered wheel spacers for GC SRT8 to give it slightly wider/aggressive stance over stock? Of course nothing ghetto but possibly about 1/2" past the fender.

imo any time a wheel sticks out past the fender it looks terrible except for trucks built for offroading

All the spacers I've seen (including high quality hubcentric spacers) all say not to use them for trucks or racing. It changes steering specifications that took a lot of time and money to figure out. But if you get some, post pictures!
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CALIFORNIA MEDICAL MARIJUANA DISPENSARIES (http://california.dispensaries.org/)

Tires sticking out past the fender also allows rocks to be kicked up scratching the paint.