I'm very new to turbo engines so sorry for my naivety! Im looking at buying a recirculating diverter valve. Either the Forge 007p or the Baileys DV30. This thread wasnt to ask which one people think is better but seeing as im here i might aswell ask anyway The original question was.... When I was gonna order the 007p from DPM it said to select which colour spring I wanted depending on PSI and I have no idea which one im gonna need!