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  1. #26
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Right, and I think that is the main point. What Evosport acted like was that stainless will crack no matter what due to being cycled. If the design puts a lot of stress on it, it will crack, but likely any setup would eventually if the design is that poor.

    Yes, stainless will not crack if the design is sound. It's not the brick wall in the road. It's a great header material when used correctly, great for turbo application too because of the high EGTs, just keep it structurally sound and it should last forever.
    Some people live long, meaningful lives.

    Other people eat shit and die.

    I'm not racist, I hate everybody equally; especially fat people.


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  2. #27
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    Click here to enlarge Originally Posted by DBFIU Click here to enlarge
    Yes, stainless will not crack if the design is sound. It's not the brick wall in the road. It's a great header material when used correctly, great for turbo application too because of the high EGTs, just keep it structurally sound and it should last forever.
    Yep, I think these are the main points.

    You can make a good header from both.

  3. #28
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    good read. DBFIU I will be back in South Beach on July 18th, you should try to be around during that week/weekend perhaps to hang out. Got some things to pick your brain about.


    As I had mentioned in one of ARs threads a while ago, 304 is good but I would much rather prefer 321....but its just dumb expensive and it would drive the product price through the roof.

  4. #29
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    June 18th is my birthday, you better party with me.
    Some people live long, meaningful lives.

    Other people eat shit and die.

    I'm not racist, I hate everybody equally; especially fat people.


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  5. #30
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    Click here to enlarge Originally Posted by DBFIU Click here to enlarge
    June 18th is my birthday, you better party with me.
    Vegas it is.

  6. #31
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    Damn he said july 18th, oh well we can still party.
    Some people live long, meaningful lives.

    Other people eat shit and die.

    I'm not racist, I hate everybody equally; especially fat people.


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  7. #32
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    Up here in New Brunswick, Canada rust is the biggest issue and there is no way for mild steel in exhaust work. I had coated mild steel pipes in my STS rear turbo install and they lasted 3 years at best and looked terrible after 6 months to a year. No matter the coating mild steel headers will look terrible after a short time and will not last more than 4 years. Aluminized steel (?) will last quite well but will look bad at the welds. Mild steel will rust from the inside out and the outside in and will look bad doing it. For us it seems the only practical solution in any exhaust application is SS. If appearance matters and it does to most of us I would think then the SS must be of good enough quality that it is not prone to surface rust or deterioration.

    Mild steel schedule (40?) pipe can be used successfully in turbo manifolds (not headers) but again it will rust and not look particularly nice. Coatings will not stand up for long and they need bracing as well if a large heavy turbo charger is used or if it is mounted very far from the head.

    I my opinion SS is necessary, in our local environment, in any exhaust application. For what they charge for C63 headers we must be able to insist that they are well enough designed not to crack or be replaced under lifetime warranty.

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