Manifolds

STOCK and AFTERMARKET MANIFOLDS for your DIESEL TRUCK

Our precision-engineered manifolds are the heart of your diesel engine, optimizing airflow for maximum power and efficiency. Whether you drive a Cummins, Ram, Powerstroke, or Class 8 or 7 Semi, explore our range and unleash untapped performance! 

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  • 2003-2007 Exhaust Manifold Cummins 3rd gen Manifold

    T3 Manifold for 24v Cummins 2003-07

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    T3 Exhaust Manifold for 03-07 5.9 Cummins 3rd Gen OEM replacement part for MOPAR PN 5135788AC A direct fit replacement performance manifold for 2003-07 5.9 Cummins in Dodge Pickups. This is a T-3 flange which is the same as the stock turbo. Our design is...

    (9)

    $479.00
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  • Cummins exhaust manifold 12V Cummins manifold

    T3 Manifold for 12v Cummins 1989-98

    (4)

    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...

    (4)

    $429.00
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  • 5.9 Cummins Exhaust Manifold Cummins Exhaust Manifold

    T3 Manifold for 24v Cummins 1998.5-2002

    (7)

    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...

    (7)

    $389.00
    $429.00
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  • RV Manifold Fummins Exhaust Manifold

    T3 Manifold for 12v Fummins or RV

    (4)

    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...

    (4)

    $499.00
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  • Non-EGR Cummins ISX Manifold isx cummins 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...

    $1,395.00
  • T4 Manifold Exhaust Manifold fits Dodge Cummins

    T4 Manifold Center Mount 98.5-2018 *NOT OEM

    (1)

    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...

    (1)

    $419.00
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  • 4th gen Cummins Manifold Cummins Manifold 6.7

    T4 Manifold for 6.7 Cummins 2007.5-2018 *NOT OEM

     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...

    $449.00
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  • 10mm Spin Lock Bolt Kit

    12V Spin-Lock Bolt Kit for 1989-98 Manifolds

    (3)

    Spin-Lock Bolt Kit for 1989-98 12V DPS Manifolds Our bolts have teeth! Custom made serated flange bolts. Flanged Serrated Spin Lock Bolt kit M10 x 1.5 x 35mm for DPS Exhaust Manifolds on Cummins Engines. Secure your DPS exhaust manifold using our...

    (3)

    $29.99
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When to Replace Your Diesel Manifold

Signs of a Worn or Faulty Manifold:

Your diesel manifold plays a crucial role in your engine’s performance. Here’s how to know when it’s time for a replacement:

  • Check Engine Light: If your check engine light illuminates, it could signal a problem with the manifold. Scan the trouble code memory to identify the issue.
  • Decreased Engine Performance: A blocked or damaged manifold affects exhaust flow, making your engine feel weak and sluggish. Acceleration becomes challenging, and fuel efficiency drops.
  • Poor Fuel Efficiency: A clogged manifold leads to increased fuel consumption. You’ll notice more trips to the pump as your vehicle burns extra fuel.
  • Trouble Starting: Excessive exhaust gas buildup due to a blocked manifold can make starting the engine difficult. Regular inspections can prevent this issue.

Replacement Frequency

While there’s no fixed interval for replacing stock manifolds, consider these guidelines:

  • Saltwater Environment: Replace every 4 years.
  • Freshwater Environment: Extend the replacement interval slightly.

Keep your diesel running smoothly—inspect your manifold regularly and replace it when needed!

What Is a Performance Diesel Manifold?

A performance diesel manifold is a critical component in optimizing engine efficiency and power output. Unlike stock manifolds, which are often single-piece cast iron designs, performance manifolds offer advantages such as a three-piece construction, customizability, and enhanced durability. Upgrading to a performance manifold can significantly improve exhaust flow, reduce backpressure, and ultimately enhance your diesel driving experience. Whether you’re chasing torque gains, reducing lag, or customizing your setup, a performance diesel manifold is a smart investment for any diesel enthusiast.