Hi all, just to update u on my restrictor dilema... it turns out i was looking at the wrong hose!!! (hey its my first turbo!!! )
so my restrictor is fine and my cars been temporarily hooked upto a boost gauge and is boosting and hoding just fine... thankfully....

But the insert i discoverd appears to have been put in to 'join" the hose after a bleed valve of some sort has been fitted... this worries me a little, what sort of issues may I be looking at in the future.. what sort of damage can occur...

also ive been told to replace the plugs can anyone reccomend a particular brand....

also a big thx to all who helped after my original post

Cheers
Fergal