Alfa Romeo Forum banner


  1. DV+ diverter valve on GQV

    Alfa Giulietta
    In the intercooler thread I mentioned that I have fitted an aftermarket diverter/blow-off valve on my QV. Since I can't find anything on this topic here, I thought it might be interesting for you guys if I shared a bit of my experience. The reason I started looking into aftermarket diverter...
  2. Diverter Valve

    Alfa 159, Brera & 946 Spider
    So in the previous topic about removing the ressonator box,the general consensus was that it was best left untouched,so my question is,already having a BMC filter on the stock airbox,how can i increase the diverter valve "dumping" noise,and most importantly,how can i do it without having black...