on a cossie, it'll be fine
only matters on matered air systems like Escort RS Turbos and small turbo esccossies
what the fook that got to do with owt jim lad
the boost will rise the airbox acts as a restrictor
mine rose from 15 to 20 held
detted its bollocks off
depends how its jetted of course
mine was a turbosystems stage 1 setup at the time
i had to fit this pipe to slow down the amount of air the valve was bleeding away.....
