If it's whooshing, and blowing out black smoke it's almost certainly a boost hose. It's highly likely to be the EGR to Intercooler hose, but could be any one of the other hoses.

If it is the EGR hose don't buy one from Ford. It will cost upwards of £90 and it WILL go again before long. Get a Silicone hose off eBay for around £35. It will last for the life of the car.