If I remove or put a straight pipe in the two cats on my 07 5.4, will Mil eliminators take care of the CEL, or do I need a programmer? Also can I run it for a while with the CEL or will it run rough?

 

my 2002 4.6 started runnin BAAAAADDD when i had no cats and a CEL, and yes if you get eliminators it will take care of the CEL

 

No cats sounds kind of rough, IMO.

 

MIL eliminators will be required. Have fun.


x2. Sounds god awful. But whatever people want to do I guess.

 

Darren, I want to go with a true duals x piped like you have. I am at work and cant pull up your pics or vids of your work, but I will use it as a template as I have the X-pipe off my 300C that would fit perfectly. I also have another SLP muffler and magnaflow 4x18 tip to match the ones that are on my truck now. I just need it to be louder!!! Coming from 2 straight piped diesels and a straight piped 300c, this aint cuttin it.

 

That will be loud, too loud for my tastes

 

damn northerners

 

I doubt it will be as loud as my last few vehicles. We will see though, I am gonna have it done in the next few weeks if I can talk my exhaust guy into doing it.