Welcome to the site Jshaw1992.
If you're looking for better fuel economy, a ram air intake isn't going to do squat for you. A warm air intake will, and actually Saturns seem to be one of the few cars that like them.
A body kit is questionable. Most are not made for better aerodynamics, just flash. However, depending on the kit, it may help.
If you're looking to get better mileage. I'd first suggest getting some instrumentation. That means buying a scangauge or ultragauge or any other variant that'll show you what your car is doing and give you feedback.
After that, I'd suggest increasing your tire pressure and a grill block. Those are real simple mods and they show good results. After that, check out our list of mods. There are plenty to choose from. If you have any questions about specific mods, ask away.
65+ Vehicle modifications for better fuel economy - EcoModder.com