vacum pipes replacement

[bigsi]

i would like to replace my vacum pipes but i dont know how many i have to replace and which they are in the engine bay, im assuming i will have them due to mycar being a turbo.

either im blind or stupid but i cant find them in the service /parts manual. can someone help me out on this one, as im driving and i put my foot down, out of the drivers window i can here a rising air type noise ( and its nothing to do with the speed.. ahem!)

it seems there maybe a vac leak, as for my guage it goes round and drops back to 0 when slowing as it should and more importantly the wastegate chatters nicely now.

so any info or pics etc would be helpful.

thanks

si