Yep, they're just bolt-on's. I will say though that once I decided to remove the ones from my old '93, it left some ugly scuffs in the paint. That, of course, wasn't an issue after it got repainted (primer actually). Just something to keep in mind.
Pics of mine through the years here (ground effects on page 2):
https://flic.kr/s/aHskxdpdnQ