Originally Posted by Quiefinator
When i was talking to Mike Hallas about putting my stacks on he told me the stock downpipe on my 6.0 flowed plenty for what i have done to it. Just looking @ the my 7.3 downpipe, it looks like it should be replaced/ enlarged.
I went from end of downpipe to 5" up outta the bed (no muffler, no cat). I bought most of it from a guy on CL for cheap.
well it all comes together and makes perfect sense now. You want stacks on your diesel.