so from most of the opinons here dump valve's dnt do squat! just marmite noise u either luv it or hate it!!! so i suppose it all goes on prefrence. the people runnin big power here that havent got them fitted an dnt want them they cant be much of a safety item for turbos coz nobody would pay stupid money for a huge turbo an not have one to help keep the thing alive for aslong as pos! bhp wise there's nothin they do i take it?
i dnt if anyone else feels the same but sumdays i like it sumdays i hate it but i cant have both so.... thanks for all the opinions guys.