I agree with the above guy. I'm in the process of installing a provent 200 and egr plate. Giving it clear as well (see pics below) well pics to big to post. But I've taken off the intercooler, all pipes, throttle bodies and egr system and full of sludge. Mine is a 2012 4.5 with 143km. If you want to pics pm me.
Cheers ray