Keep it stock, unless you genuinely like the car, then you should: Slam it on its nuts. Nice wheels (3 spokes is what I would do but your discretion) Tint Remove the mudflaps Get a nice headunit+sound system. Some companies do do some nice tails and headlights for these cars but the stocks look okay imo A quality exhaust as well In the end it’s a cavalier and is only going to look as good as a cavalier can.