Turbo boost pressure unit

Hi, was just wondering if any one knew were the two braided pipes which come from the turbo boost pressure unit and then head of to the passenger side of the engine go to. Its a range rover L322 TD6. I was checking it out after having a new brake line fitted and a pipe had been knocked off so no boost, car runs fine now but one of the pipes has broken off as it is so flattened and damaged. but not affecting vehicle as far as I can see. Its the BMW unit and brake booster

This any use

Sorry meant turbo boost not brake

Can't find that in the manual but posts #8 & #9 here may help https://www.landyzone.co.uk/land-rover/l322-td6-lack-of-power.341314/