I'd say do it, but of course thats because im also a teen. sounds like your dad has a lot of say over the car, If it was me with 3500 oh let me see...GT body kit $700 painted, then the wheels and tires you want $1300then 4.10, LSD and CAI and tune $1500. You worked hard for that money, there is a point where your dad needs to take back seat. And no its not a waist, better than buying drugs, thats whatI tell the folks.