I don't have a jig for the down pipe. That would be something quite elaborate, and I don't have the time or the space to make one. However.... I'm 99% sure of how it needs to be modified. It looks pretty simple and when that time comes, I'll have tons of pics to show how I did it.
Modding you're guys Down pipes isn't really something I'm all that interested in as of now. All due to the fact that I would have to test fit every single one on my own DD. I sold my wagon today... So I don't have a spare car to keep down for down pipe modding.
I may change my mind on that depending on how easy it is to mod them. But that time will need to wait until that step comes.