seen your edit, and yes if your going to go that far to do the uppipes the gate in the dowpipe might be the way to go.
HOWEVER, if you have issues with the gate, want to change springs or anything like that, with bigger turbos like the high/max powers you must lift the cab 4 inches minimum to get to the gate, being like WOP is down on the bottom you could take the gate off easy, swap springs, and put it back on, other set ups, you better hope you got it right the first time LOL
EIther way isnt for eeveryone, twin set ups have to be up top so the gate can feed the big turbo, but for stock/tow power turbo set ups, i would put it down on the bottom in a heartbeat.
HOWEVER, if you have issues with the gate, want to change springs or anything like that, with bigger turbos like the high/max powers you must lift the cab 4 inches minimum to get to the gate, being like WOP is down on the bottom you could take the gate off easy, swap springs, and put it back on, other set ups, you better hope you got it right the first time LOL
EIther way isnt for eeveryone, twin set ups have to be up top so the gate can feed the big turbo, but for stock/tow power turbo set ups, i would put it down on the bottom in a heartbeat.