Find a metal shop, ask if they have any 1.5" SS bar stock (preferred) scrap that they can cut you a 1/4" piece off of. Get the EGR up-pipe out, check for the scoop and remove as necessary, weld in the plug, install the modded pipe.
Now if you want the whole pipe already done up there are some fellas that have the pipes ready to go and will swap you for cash and the core.
I was able to do this in the driveway with hand tools. If you remove the following it helps to access the area: passenger side wheel, passenger side wheel well liner, and downpipe. Have as many rachet extensions as you can find since the upper end of the pipe is hard to reach. Take your time, dont rush.