New to group. Nice community. Have a 2015 fiesta s sedan.

[RHelton8704]

Few upgrades done. Just got magna flow exhaust 14829. Anyone know what kind of exhause pipe need for the back of the muffler needed if I'm cutting the exhaust pipe behind muffler? And the size of the pipe. New exhaust inlet is 2.25 outlet 4"...I think the OEM is 1.75 exhause pipe at cut point.

 

[scotman]

Welcome to the forum. Just get a reducer to fit the stock pipe O.D.
When I installed a Dynomax muffler onto my Fiesta that was how it was done. I had a local muffler shop do the install because the muffler needs to have hanger pins welded to it in order to install it in the original location. You will also need a tailpipe with the turndown to get the exhaust out and away from under the bumper.