

It is an extension/evolution of the idea of ricing cars. Originally it was something like Race Inspired Cosmetic Enhancements. Basically stuff that makes your car look “racier”/faster, but does nothing for performance.
Edit to add - That is probably backronym to cover up for the mostly racist origination of that term. I can’t be sure.























You are being downvoted because what works for you is not going to work for everyone, and pretending like it will makes you look like an asshole.