Then don't use the ZZP one.. LOL I was looking for the Magnaflow cat to post the link to but couldn't find it on ZZP, 3800performance, or intense.... I am pretty sure I bought mine from 3800performance a couple years ago for $80ish. Usually a muffler shop wants around $120 (here locally) plus for an universal cat that's why I went with the magnaflow one.

I have passed emissions two years now with the Magnaflow cat.