I just found the previous owner of my truck and he stated the 4 inch exhaust came with the truck from the dealer as an option. Has anyone heard of this?

 

Not factory, maybe a dealer add on.

 

I agree with Mech2161, never heard of it

Hanklin

 

It must be some arrangement a dealer had with a muffler shop then. It is a nicely bent system but I can't find the manufacturer. It came from the phoenix area so guess I'll mark it up to unknown but works.

Thanks for the input!

 

Chances are it was from sanderson ford. They have an onsite lift and supershop. They are pretty mod friendly there. They will build a truck for you.