RE: EGR replacement.
kill it and get a chip to take it off. It does more harm than good IMO. You should see what your valves and runners look like due to that POS.
But if oyu insist of replacing it, it is a tough job, and costly. You will have to take the intake off to get to it and do it right in a decent amount of time. All you need to do this is metric tool set, basic handtools, big creceant wrench, common sense, and some patence. To make things 100% easier, I suggest taking the hood off of the car, (takes 10 minutes if oyu bring a friend) then take the cowl off, then taking the intake off to get to it. You will have to get a new EGR tube as well, cause as soon as you touch it; the accordian like metal will rip apart, and you will have an exhasut leak. That tube is on there really tight too, so eat your wheeties. Good luck