i have an automatic tC and i was wondering if it would hurt the car in any way to install mods on the car. i was thinking of putting a turbo, CAI, header, and exhaust on the car, but i dont want it to deminish. also, will there be any gains at the car at all? i wouldve gotten a manual, but this is my first enw car, so i thought automatic would be better. any suggestions would be helpful.