The RB26 name points to the Nissan RB26 engine family, most famously associated with Skyline GT-R models and their tuning culture. Online, short turbo flutter clips like this spread through car forums, YouTube edits, Instagram reels and meme compilations because the sound is instantly recognizable to enthusiasts. It remains popular because the stututu effect is a quick shorthand for boost, horsepower and modified import cars, even when creators use it humorously on footage that is not actually from an RB26-powered car.