Quote Originally Posted by cumminsdieselfreak View Post
If you put on a new turbo back exhaust it's most likely the downpipe not fully seated against the turbo outlet.
I think this could be it as i don’t know what else it could be.

I have a friend coming to town in a couple weeks maybe I'll ask for his help.


Deleted 2016 Cummins mm3 and 4 inch flopro

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