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  1. Experience with GFB DV & Bonalume?

    Alfa MiTo
    Hello guys! :) Im considering buying the "Bonalume blow off plate" (which i think it's called?) aswell as the GFB DV+. The thing is that I'm not yet familiar to turbo engines, so I was wondering if anyonw has got any experience with those valves? The bonalume valve is just for the sound of...