ok i know you will need a twin piston dumpvalve for an escort rs turbo, but why does almost everybody has the bailey dumpvalve instead of the forge one ?

i ask this question because i was thinking about buying the forge FMDV004. its cheaper and looks better to me, but since i never hear you guys about it I wonder if its a good dumpvalve !?

http://www.forgemotorsport.co.uk/pro...roduct=FMDV004