04 Excursion 6.0 - cat or no cat?

[chedderboy]

What's the story on the cat converter? If this is removed, will it improve mileage? I just got a Banks Six Gun Bundle installed, but the exhaust sounds pretty much the same.

[scotty2280]

taking it out will lower your egt's , and sounds meaner at wot

[POWERED SPARKLESS]

Originally Posted by scotty2280

taking it out will lower your egt's , and sounds meaner at wot

You might see a little MPG's but you motor will love you for the lower EGT's and you will love the wistle and nasty mean sound.

[stump0331]

get rid of the cat and the muffler and let that sucker breathe

[SCUFFY828]

mileage is different on every vehicle, what works for you might not work for someone else, the cat off will help like others said for temperature reasons for sure , but a fuel mileage increase isnt gauranteed