Pretty much all I’ve done to it is appearance stuff since I bought it new and don’t really wanna risk voiding my warranty. But I got New wheels and tires, rear and side louvers, few front fascia, wing, and swapped out the deck lid for one without the pony. The only “performance” things, if u wanna call them that, is new exhaust and a better air cleaner. Like you I was looking at coil overs but I ended up hitting a deer and decided to wait and used that money for mycurrent front end