do a search under silencer ring and you;ll find what you need
anyways... . pull the filter tube off the front of the turbo. Look at the turbo and around theoutside of it is a "snap ring" take a small screwdriver and gently pry it out, then the silencer ring will be lose, just pull it out and the silencer ring is removed. on a 1-10 scale its a easy 1
Hope this helps
Ian