Can anyone help with a supplier please?

Been having a bit of trouble with error code 66 recently (sequential turbo system - supercharging pressure low or abnormally high, overboost!). I have inspected all the rubber pipes coming out of the Solenoid box and can see that the pipe numbered 5, the pressure pipe to the upper chamber of the secondary exhaust actuator is perished at it juncture. Shall now need to replace this and might as well renew all of them, so does anyone know if UK Subaru dealers can get me these pipes, or even name me a specialist in the south east?

Many thanks.

Legacyman