Hardin -

Are your inner and outer tubes both 316L ?

And what material is used to weld them ?

Last and - And, what measures are taken to make sure only that welding material is used ?

Sorry if this info is on your site and I haven't remembered.

YES Both tubes are 316L and are welded with AWFSS materials. Then the headers are heat treated and passivated for superior product compatibility.

One last question - where country are the metals sourced from and where are they assembled ?

Yes, it means a lot to me and most of my customers + friends.

Thank you so much for your info.

100% United States of America from the leading source of aerospace tubing in the country. As the matter of fact not only do they NOT import but they are the leading exporter of stainless steel tubing with three manufacturing mills here in the USA..

As a side bar note, no marine exhaust company in the United States could if all combined order enough material to make importing tubing feasible. This industry is much much too small.

Oh yes sorry forgot to cover the where question? All of the products are assembled in our Ohio manufacturing facility by us guessed it 100% US Citizens.

I would think Hardin would be cheaper made than CMI, most of there stuff is imported.

Didnt CMI have a problem with the garde of stainless that wasent marine grade, I would think they have worked thru all there quality issues