dos it matter what sise you have
for years i have allways used 3mm,but scince removeing my PCV i now use that out let just for my dv now,but i now dont want any joins on that line and that out let i slightly biger than the other two so my question is would it be ok to use 5mm from that to the dv and it would only be on that line ,3mm for everything else
for years i have allways used 3mm,but scince removeing my PCV i now use that out let just for my dv now,but i now dont want any joins on that line and that out let i slightly biger than the other two so my question is would it be ok to use 5mm from that to the dv and it would only be on that line ,3mm for everything else