It's your car do whatever the hell you want with it. To all the other idiots telling you otherwise well.. just ignore them.
Most of the kiddies get money from their parents drop the car off at the shop and have all the work done for them anyway. They probably don't even know how to change the damn oil. Even if you do an intake or exhaust or headers and it might not have much gain in power for you. It's your car, do whatever makes you happy and more power to you