Ive recently just done this conversion to my fiesta as the t25 had gone bang when i brought the car. You have to seperate the i/c from the rad and pull the rad out and then replace it with the lugs on the bumper side of the front panel so that the turbo doesnt foul the rad. i also used a standard erst i/c for the pipes as its impossible to fit a pipe from the snail onto the bottom of the standard frst i/c. You also need to mess around fabricating an oil return and fabricating an exhaust system. Luckily i picked up a nearly new magnex system and had an old erst magnex system lying around so used the downpipe from that, bolted straight on. Ill take some pics 2moro and post em up for you.