Pipe diameter on stock exhaust?

[maxwell018867]

I’m lookin to get a custom exhaust done soon that’s after the cats and spits out in front of the passenger rear tire. I’ve got a 2010 Raptor with the 5.4l without the resonator so I don’t know if that plays a part, but I’ve been trying to figure out the stock pipe diameter so I know what muffler to look for. I’ve heard people say it’s 2 1/2 inch and others say 3. Any clarity would be greatly appreciated

 

[Jakenbake]

I vote tri Y headers, with equal runs of pipe to an x pipe then to some boom tubes!

I’m not sure what came on the 5.4, you could just crawl under there and measure it.

 

[maxwell018867]

I so badly wanna go with some nice headers , but it might be something for later down the line. That is of my 5.4 is still kickin by then.