there are so many types of dumpvalves out there,so which are the best for our motors? i.e piston type or diaphram type? wot do u guys recommend

there are so many types of dumpvalves out there,so which are the best for our motors? i.e piston type or diaphram type? wot do u guys recommend

 

personally id get the HKS dual SSQ but thats just me

i've got twin blitz dump valves and they seem quite good! especially the noise!

Twin apexi for me. havent got round to fitting yet but get good reviews!

so any notherners fancy giving me a hand fitting?!