Im not gonna say they ALL look stupid, it depends on the wheel style. The huge gaudy lookin DUB styles and stuff thats like way too much for the wheel looks ridiculous, now ones with just like 5 or 6 spokes looks good, well most do.
Plus like they said, you SHOULD upgrade your brakes, you dont HAVE to, but be prepared to be taking her to alot of body shops, or stay WAY the hell behind people haha.
Ive seen ONE 1st gen in my time with big rims on it, and they were the stupid overdone ones like I was talking about, and it was on low-pro's LIFTED which looked like HELL.
If you could fit them in the wheelwell, maybe lower it an inch or two, they could look good.
Theres my $.02 lol.