not new but got some questions

Hi everyone i've had my galant for about a year now and it was out of comission for about 8 months finally got a replacement engine and can hopefully start modifing it soon just wanted to know what kind of parts others have add to their 4g64 not looking to turbo it yet thinking bout building a 4g63/4g64 combo but meanwhile i buy what i need for that want to have a little more power out of my ride now so far i have only found a few parts for dress up and some performance but any unique ideas would be helpful