Stock Exhaust.....

[cconnell]

I was wonding if any one has altered there stock exhaust and why?????

[RHFDpowerstroke53]

i have a 7.3 but mine is straight piped. No muffler or cat (never had a cat). Its louder and i think it keeps EGTs down a little bit because there is less restriction without the muffler. but im not an expert. it was a cheap way to make it louder.

[cconnell]

Yeah i have a friend with a 04 and he just took out the muffler and replaced the pipe so all he has is his cat, I didnt know if this helps.

[pizza pig]

get rid of both, your truck will thank you

[cconnell]

so if i cut both out and just replace with pipe, will it throw a code? how loud is it? I dont want to loud...

[John@CDP]

Originally Posted by cconnell

so if i cut both out and just replace with pipe, will it throw a code? how loud is it? I dont want to loud...

No codes at all, pre-2008 there are no sensors in the exhaust on any Ford diesels.

[cconnell]

how loud will it be

[John@CDP]

Pretty loud outside, not much change inside, I would reccomend cutting out the CAT first and seeing how you like it then do the muffler if your worried about sound.

[cconnell]

what will cutting off the cat do for it?

[pizza pig]

your egts will drop an easy 200* with the removal of the cat, its very very restrictive.