ok, so a few major problems occured over the past few days, the water decided it water to turn the turbo into a fountain so have had to get the water feed pipe for the turbo brazed, and to check this jumping out at low revs ive booked it in for a remap session, now is it worth getting a bleed valve put on and set up or should i just have it mapped without ?? seen them on ebay for like a tenner.