u/Edgy_doggo_boi

I've been cruising in a 2013 sedan with the 2.0 Skyactiv, 6 speed manual, and while it is by all means a boring, slow car, I still love it dearly and I want to do some tasteful mods. For mechanical skill reference, I do my own oil changes and I've changed the spark plugs, and that's about as far as I've gone, but I'm willing to push that. What are some relatively easy/inexpensive (couple hundred bucks tops) mods that I can do? I feel like a cold air intake is an obvious one, but what are some others?