If you recently purchased it, then you have recent contact with the previous owner. Ask them some of your questions. That's what I would have done... before buying the car, but after can be okay to. If the car is 'lowered', then you won't have factory suspension. At a minimum, you'll have aftermarket "lowering" springs. So start there, look at and take a photo of the springs front and back. Post your photos here if you can't tell on your own. OEM are typically black and generic looking. Aftermarket are often colored 'pretty' and will have some brand name stamped onto them, possibly with a part number or spring rate. Similar goes for the colors of the shock absorbers.
The 5.2 clearance dimension will be to the bottom of the chassis, not a low hanging part like a muffler.
For s*** and giggles, here's some info on intakes:
https://www.carthrottle.com/post/engine ... m-intakes/
If it is lowered, then to get it back you'll need OEM style springs, possibly the shock absorbers, and worst case the hats and bushing bits.