Exhaust Manifold

Exhaust Manifolds for Diesel Trucks

You have reached Diesel Power Source’s Exhaust Manifolds Collection! Our precision-engineered manifolds are the heart of your diesel engine, optimizing airflow for maximum power and efficiency.

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  • 2003-2007 Exhaust Manifold Cummins 3rd gen Manifold

    T3 Manifold for 24v Cummins 2003-07


    T3 Exhaust Manifold for 03-07 5.9 Cummins 3rd Gen Fits 2003-2007 5.9 Dodge 5.9 Cummins ** Legal for installation and street use in California, California E.O. Exemption** A direct fit replacement performance manifold for 2003-07 5.9 Cummins in Dodge...


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  • Cummins exhaust manifold 12V Cummins manifold

    T3 Manifold for 12v Cummins 1989-98


    T3 Manifold for 12V Cummins Exhaust Manifold 1989-98 DPS presents a game-changing T3 Manifold for your 12V Cummins Exhaust, covering the years 1989-1998 for your Second Gen Cummins 12V. This is a direct factory bolt-on.  The factory manifold has a...


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  • 5.9 Cummins Exhaust Manifold Cummins Exhaust Manifold

    T3 Manifold for 24v Cummins 1998.5-2002


    DPS 3 Piece 24V Cummins Exhaust Manifold for 5.9 Cummins Exhaust Manifold T3 Flange Years 1998.5 1999 2000 2001 2002 2nd Gen ** Legal for installation and street use in California, California E.O. Exemption** The 2nd Gen Cummins stock flange is T3...


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  • RV Manifold Fummins Exhaust Manifold

    T3 Manifold for 12v Fummins


    DPS Ford Cummins Swap Exhaust Manifold | Fits 12V Ford Cummins Conversion | Fummins Swap T3 Performance Fummins Exhaust Manifold for Ford Cummins Swap Kits 12V 5.9 Cummins Motorhome Industrial 3931747, J901683, J931747 replacement. DPS Ford Cummins Swap...


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  • T4 Manifold Exhaust Manifold fits Dodge Cummins

    T4 Manifold Center Mount 98.5-2018 *NOT OEM


    T4 Cummins Exhaust Manifold Center Mount 1998.5-2002 *NOT OEM ** Legal for installation and street use in California, California E.O. Exemption for pre-2007 vehicles* DPS T4 Exhaust Manifold for Dodge Cummins T4 manifold is a 3-Piece design to prevent...


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  • 4th gen Cummins Manifold Cummins Manifold 6.7

    T4 Manifold for 6.7 Cummins 2007.5-2018

     6.7 Cummins Exhaust Manifold Upgrade for 2007.5-2018 Dodge Cummins 6.7 | T4 T-4 FLANGE WILL NOT FIT FACTORY TURBO! Fits 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 6.7L EGR Compatible ! DPS is the best 6.7 Cummins...

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  • cummins isx15 Non-EGR Cummins ISX Manifold

    T6 Exhaust Manifold for Cummins ISX fits S400

    T6 Exhaust Manifold fits S400 & S410 Cummins ISX15 | X15 (Not a Stock Replacement) Upgrade Your Cummins ISX15 Performance with DPS T6 Exhaust Manifold for Deleted Semis! Key Features: Lowers EGTs, enhances durability. Accelerates exhaust gases for...

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What is a Performance Diesel Exhaust Manifold?

A performance diesel exhaust manifold is a critical component in optimizing engine efficiency and power output. Let’s dive into what it is, how it works, and why upgrading to a performance manifold can transform your diesel driving experience.

Understanding Diesel Exhaust Manifolds

What Is the Purpose of the Exhaust Manifold?

The exhaust manifold in a diesel truck serves a crucial role: it collects exhaust gases from each cylinder and channels them away from the engine. Here’s why it matters:

  1. Efficient Flow: By precisely directing exhaust gases, the manifold optimizes flow dynamics, reducing backpressure. This enhances overall engine efficiency.
  2. Heat Expansion: Unlike stock manifolds, performance manifolds are often three-piece designs. They allow slight movement to accommodate heat expansion and contraction. This prevents cracking and damage.
  3. Customization: Upgrading to a performance manifold can improve exhaust flow, boost power, and reduce lag. Whether you’re towing or chasing speed, it’s a smart investment.

How Often Should You Replace Your Exhaust Manifold?

  • Inspection Interval: Have your entire exhaust system inspected every two to three years, depending on driving conditions.
  • Signs of Wear: If the manifold appears worn or damaged, consider replacement to ensure safe driving conditions.

Remember, a healthy exhaust manifold keeps your diesel engine running smoothly!