Toad the place i am taking it to wants to know the size because they have never done one before but they are getting some info as well as me asking you lot.
rs1 the turbo will start to produce to much boost because the wastegate hole is to small when i chip it up to the BHP that i want, thats why i need to find out what size the wastegate should be machined to so i can control the boost if you no who can help me please could you get them to tell me........ cheers lads

Give the boys at Motorsport Developments a bell on 01253 508 400, theyre the best boys about at moment up this way, only deal with Cossies too, do all the live mapping etc if u need it