Let me give you a bit of an idea how it will sound fellars. People have run these on stock rb25 turbos. They sound like shit. Sound like a riced up shitter with an exhaust leak.
The fact that each gtr turbo is ultra tiny running on 3 cyl each, consider that it'll run like a riced up shitter x100.
Note. I'm not saying that screamers sound shit. If you have aftermarket large turbo, or large single, they'll sound angry. But on stock turbo, sounds as shit as can be.
BTW, fellars, this question is asked just about every month. Search