dude supercharging would be sick, but it gets real pricey real fast. plus it tends to take a lot of work so you'll want to make sure you have to the time to commit to work on your ride or make sure you have the money to pay for labor costs if you're having a shop do the work. i would recommend going for exhaust, headers, and intake cuz it's a little easier and tends to be more friendly to your pockets. if you decide to keep stock make sure you do your research and get the good stuff (HKS, tanabe, greddy) cuz you don't want to have your ride sound like a tin can. def go with a cat back system cuz it will really give your engine the ability to breathe easier and they let your engine really sing. whatever you choose make sure you do it right and don't cut any corners. good luck with your ride man!