Anybody know if the pipe going into the muffler on a 2003 F150 4x4 5.4 L is the same as a 02 and what size is it? Thanks

 

Just incase anyone was wondering the pipe that goes into the muffler is the same from 98 to 03.

 

What size is it???

 

I believe all 98+ V8 piping is 2.5" from the factory. I don't know about the V6, but I suspect the same. 97 had a different exhaust routing, but I'm not sure exactly how it goes. My brother has a 97 and he said he does not have 4 cats - I was suprised. And obviously the exist before the rear wheel before the recall.

 

I have a 97 w/ a 4.6 It still has the stock exhaust, < holds head down in shame :o> complete with garbage can muffler & all. It does have four cats but they are built together and could be easily confused to be one on each side. It was the only year where the tailpipe exits ahead of the right rear wheel.

Good luck.

 

yes it is 2 1/2 inch pipe sorry about that not sure on 97

 

Hmm I thought the 4.6L's had 2.25? Perhaps I measured the thing incorrectly?

 

the pipe size i am talking about is on a 5.4 L it is 21/2