ATP Turbo 3" Stainless (also 3.5") Downpipe Flange and Clamp for 6.0L Ford Powerstroke Turbo 2003 through 2010
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As shipped, flange has a 3” ID on the back end so you just slip a 3” OD tube into it and weld.
However: This multi-purpose flange can also be used for a 3.5” downpipe by grinding away the tapered down 3” section on the back of the flange to reveal a 3.5” outer diameter.
304 Grade Stainless Flange machined from Billet.
Also includes a very sturdy matching high quality stainless MADE IN USA V-band Clamp.