12.7l Detroit Exhaust manifold swap

Discussion in 'Ask An Owner Operator' started by Kruse Family Farms, May 22, 2026 at 8:53 PM.

  1. Kruse Family Farms

    Kruse Family Farms Medium Load Member

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    Dec 6, 2022
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    Howdy guys. These engines have been around forever so I'm sure plenty of people have experience with the exhaust manifolds. Mine is cracked dead in the center where the turbo mounts. Is it worth the money to get a high performance or one piece manifold? In the past I never bothered but I am considering one this time around. I thought the new ceramic coatings you can get alone might be worth it. Supposedly helps with flow exhaust temps. Or is it all a waste of time and I should just get a $400 dollar no name one? Let me know your experience! Thanks.
     
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  3. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    I don't think much of "performance" parts, but a Full Tilt exhaust manifold is 100% worth the investment
     
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  4. Kruse Family Farms

    Kruse Family Farms Medium Load Member

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    Dec 6, 2022
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    Any other input on why it is so good? Longevity? I have heard lower EGTs. I plan on having the truck a long time and don't plan on ever swapping the engine away from the 12.7l so I was thinking it might be worth investing in something good.
     
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