exaust , new guy

[dieselduster]

2001 exaust question

hello there to all of youi am a new owner of a 2001 expedition xlt black out grey in i just took it on its first long journey i went 1100 miles in it what a fantastic driving and riding truck comfortable got average of 17 mies per galon ,i love it,my ? is what size is the stock exaust on the truck , and what seems to be the best way to go with replacing it it is still good i just would like to put a LITTLE rumble into it and maye a little more horses and tourqe,nothing to fancy.

Thanks to all who answer

 

[newtofords]

wondering the same thing here....don't have an answer for you, sorry. I'll just see what others say.

 

[green03]

on most of the 5.4 trucks it comes with 2.75 inch compression bent (not mandrel) sometimes it also has a resonator in the rear as well. The 2.75 inch is okay unless you add a supercharger. All of the catback kits use 3 inch. The easiest way is just go and measure the outside of the pipe......
Matt