Just my two cents...
Terms that appropriate cultural iconography to denigrate others are, by definition racist. That does not always mean offensive, but, it’s really best to avoid them.
Rather than using the term ricer, ridiculous is prolly better frankly.
On the other side of the spectrum, using your value system to judge others is also prejudicial and culturally I sensitive as well. Folks that think “riced-out” cars are ridiculous may use a term that is culturally insensitive, another party denigrating its use may be acting insensitive to the culture (‘Murican car guys) is also being equally insensitive and oppressive towards the group that they are demonstrably denigrating.
So... “ricer” is better avoided, and, more importantly, denigrating others because they do not share your “enlightened” values should also be avoided.
BTW, I’m a PhD in Social Justice (Vandy) and learning/understanding where others exist in their culture is far more important than suggesting that “everyone” should conform to any (especially your own) worldview is pretty silly.
As to the OP’s original question..
Cosmetic (only) modifications that look like they are performance modifications are (in this posters opinion) ridiculous.
