bleed valve help please
 

hi there lads av got sti 04 and was thinking can i put a bleed valve on or is this not the right thing to do i had rs turbo years ago put 1 on it and it was ok i am not sure about scooby pls help much appreciated

Don't do it mate there are plenty of better methods of getting more boost (also more expensive though).
Ecutek remap about £600 (yes i know that's not cheap :)) but this will sort out your fuelling to compensate for the boost increase.

how much boost are you wanting to run?

if you are only turning up the boost slightly then you will be ok and the ecu will be able to compensate!....(although always best to get AFR's and det checked)