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Powder coating new manifold

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    Powder coating new manifold

    Would it be required to powder coat a replacement exhaust manifold?
    I bought an OEM replacement for $30 off Ebay, and if it lasts 2 years without a powder coat, thats good enough for me. But would it really be a necesity?

    Also, is there a gasket for the manifold to get a better seal to the block?
    The replacement didnt come with one, and I havent pulled off the old one to see if it had one.
    '98 Protege (Sold at 125k miles)
    2006 Mazda3S Grand Touring, Heated Black Leather, Moonroof, Bose 6CD, Tow package (LOL)

    #2
    You need to get the gaskets from the dealer or maybe you can find them at an auto parts store (they're most likely a dealer only part).
    You might as well get both the exhaust manifold gasket and the one between the manifold and the precat if there is one.

    I'm assuming you have your heatsheild off and you find the cast manifold ugly. There's no sense in powdercoating a cast manifold. It'l look like carp in no time. If you absolutely must do something to it, I would get it polished. Though I still don't think it would look very good for very long.

    Ceramic coatings are popular to use on tubular style manifolds as they are much thinner than a cast manifold and the properties of the coatings can help manage the heat energy in the exhaust.

    I would just reinstall with new gaskets and paint/powdercoat/polish the heat sheild to hide the manifold until someone comes up with a header.
    1998 Mazda BHALP SE - Rain Forest Green Mica

    Pacesetter short shifter ; Depo tails (thanks beetle_orange) ; Custom CAI nearing completion ; CF hood on the way ; Brembo blanks & KVR pads to be inst. (thanks Pigeon) ; Goodridge brake lines to be inst. ;

    Much more to come...

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      #3
      either that or just take heat resistent black engine paint to the manifold and heat shield works just fine and looks a lil better.....well as good as it can look thier just ugly to begin with:D
      peace
      dante

      2008 Mazda 6i Sport
      1990 Mazda Protege 4WD
      1999 Nissan Altima SE-L

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        #4
        I don't think you're worried about aesthetics, so no... it is not necessary to powder coat the manifold. Like Shaun said, you will need a gasket between the block and the manifold, and between the manifold and the pre-cat.

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          #5
          even though you haven't mentioned it, there is one thing that could be done. You could take the manifold and have it pnp machined to help with exhaust flow since there are no headers for the 1.5. Ceramic coating even on cast will help retain heat and with proper preparation will look good nearly forever.
          97 protege dx few mods

          94 escort lx heavily modded

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            #6
            In 2 years your powder coated manifold will be the least of your worries.

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