
to TN!
Nice pick up with the Corolla and I do have to agree I am surprised there is not a dedicated forum for the 10thGens. There was one a year or two back, but it closed down due to inactivity.
Back on topic, as far as I know every Corolla that has a keyless entry has the panic alarm but that doesn't mean it has a factory alarm. You only have one if you got it as a option.
If you want some mild suspension upgrades consider a TRD Strut bar and/or Rear Sway bar and/or TRD Springs. There are many compliments with a full TRD Suspension upgrade that it performs well.
For power you can just look into a DIY Intake, or just purchasing a aftermarket CAI/SRI. Another possibility can be the Borla axleback or just simply using a universal muffler of your choice.
There are members here that have changed out their dash lights, but a DIY has not been made for it yet. Just wait for them to chime in and I'm sure they'll guide you out!
Enjoy modding your Corolla and definitely post some pictures!