The Pirus are a subset of the larger Bloods gang alliance, an organized crime group in the United States.
Piru graffiti
Piru sets often use burgundy or red bandanas as a form of identification, although other colors may be used to evade detection from law enforcement
The Bloods are a primarily African-American street gangs which was founded in Los Angeles, California. The gang is widely known for its rivalry with the Crips. It is identified by the red color worn by its members and by particular gang symbols, including distinctive hand signs.
The distinctive Blood gang signal
The gang symbol of the Bloods, as the sign reads the word "blood"