Nope, it's free to do as I wish. The only problem that would arise would be at a muffler shop. They won't work on your muffler unless you have a CAT installed. But I don't care cause on the P-cars I do the muffler work.
That brings me to another point, but I don't want to derail my own thread, I'd like to remove all the emissions stuff but I don't know what is emissions and what is needed so I left it all there for now. This is for another thread so lets try to stay on topic with the turbo stuff.
What did you think of my recipe for disaster?