stock muffler

Looking for the stock muffler for my 2021 XLT crew cab. I’m located in S. Florida. KB3Z-5230-C

Not sure if anyone else has posted this about the OEM muffler. I got my muffler replaced with an aftermarket straight through one. I kept the old muffler. Looking down in it with a flashlight confirmed my suspicions. Yes, the one inch opening is there. BUT, before that for maybe four to six...