Frequently Bought Together

PDI Big Boss Intake manifolds are built to increase and balance the air going into the engine. By opening up the manifold in key areas airflow will increase up to 35% leading to lower air intake temperatures resulting in power gains of up to 20hp. These direct replacement manifolds are simple to install and utilize factory hardware. Like all PDI products, the Big Boss intake manifolds will increase horsepower and efficiency to make your drive more enjoyable and save you money.

Applications for this Manifold:

Available for: 2013.5 - 2024 Cummins ISX15 & X15 Engines

Any mention of OEM names or OEM product ID numbers/descriptions/model numbers is intended for identification purposes only and does not indicate that it is an OEM part.


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    1 Year warranty!

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    Buy Now, Pay Later

    Interest-Free Up To 12M

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    Customer Service Guaranteed

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    Free Ground Shipping

    On All Orders!

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    Premium Quality Parts

    Manufacturing Since 1973

    offer

    Buy Now, Pay Later

    Interest-Free Up To 12M

    offer

    Above The Line

    Customer Service Guaranteed

    offer

    Free Ground Shipping

    On All Orders!

    offer

    Premium Quality Parts

    Manufacturing Since 1973