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Discussion Starter #1
My truck has an early gen 1 DPF delete on it. I pulled the muffler off today to straight pipe it and noticed a piece of 1" wide bar stock welded across(inside) the the end of the 4" DPF delete pipe.
I am just curious why it is there?
is there any specific reason why it needs to be there?
the way it is in there it has to be restricting flow?
 
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