Which Hose?
 

Is there a good aftermarket brand of hose to replace the hoses to/from the wastegate/recirc dump valve/boost solenoid. Is there a complete kit replacement or a particular size hose.

Its Ok I have found it 4mm ID. Found a local stockist who will do 3m of Samco Vacuum hose for £6.91.

Make sure you get the pill out of the old vac hose and into the right place in the new one! I'm pretty sure new age have a pill anyway!

My 03wrx has the pill in the vacuum pipe. just don't remember which one (3 port solenoid).