This happens all the time. Which is why I dislike the whole 'rice' name calling fad, I believe it more to be an attitude as opposed to an appearance, but that is a whole other debate.
When people get like this just say:
If you plan on paying for my car and my insurance, I will modify the car to your liking. Until such time, quiet down. Thanks!
As much as 3 foot high wings and 6 inch exhaust tips are not pleasing to my eye and others, I just can't understand why people waste their energy stating their dislike for it, or better yet calling names at the individual/making assumptions. If he likes his car pink with flowers painted on the side and 7 tvs in the interior, good for him. He paid for it, let him do what he wants.