So, I know Mountune makes (or made) an upgraded recirc valve for the Focus ST. Does anyone do one for the Fiesta? Are the FoST and FiST valves the same? I ask because I am super interested in getting more of the turbo flutter sound. I'm not into the BOV sound, but the classic turbo flutter sound ala Group C race cars fom the 1980s is, in my opinion, super cool.