you mean where the downpipe unbolts from the car or the turbo?
On the turbo you have 3 studs and nuts holding the downpipe on, to get to the top one remove the charge pipe and things around that area to get to it, you will probably need a a small ratchet or stubby spanner, i used a ratchet with a flexy head. then then other ones have to be removed from underneath the car. if you remove the driveshaft shield, and the lower strut brace which goes across the subframe you can get your hand up there with the small flexy ratchet.
even after you have got all the downpipe bolts out you wont be able to get it down without remove the two 13mm bolts holding the bracket on, doubtfull that you will get the rubber off and its quicker to remove the bolts.
the downpipe still wont come out and heres the nice part, have to remove the subframe bolts, 21mm. there are 4 bolts holding it in place and the top suspension mount bolts which allows it to drop down, you have to swing the subframe out the way or lower it down to get the downpipe past. not a nice job even on a ramp took me some time to do it and get the subframe off and on, its only a few bolts but it doesnt move very easy, easier to remove the 4 bolts holding the power steering rack in place as its connected to the subframe and the steering column joint inside the car.
if i didnt have a ramp id pay for it to be done save yourself the hassle and stress.