Hey people, I am looking into buying a Flowmaster Super 44 Series Muffler, Link: FLOWMASTER SUPER 44 MUFFLER 2.5" CENTER/DUAL 2.5" | eBay

This would mean I would have to upgrade to a 2.5 inch inlet piping.
Is there a place I can buy this piping pre-made?
Also, I would like to use the stock muffler tips, but I can't find a website that sells them.
I would like to save my stock exhaust system in case I want or need to revert back to stock.... So when I install new piping, will they ruin my old assembly during the installation?


Just need a crash course on what's involved during a catback exhaust installation
Thanks!