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MBRP 4" T409 Stainless Steel Downpipe - 03-04 Dodge Cummins 5.9L

Thoroughbred Sku #: MBRDS9405
Manufacturer Sku #: DS9405

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$174.99

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Product Details

Product Name: MBRP 4" T409 Stainless Steel Down Pipe
Manufacturer: MBRP
Manufacturer Part #: DS9405
Thoroughbred Diesel Part #: MBRDS9405
Fitment Notes: 2003-2004 Dodge Cummins 5.9L

Get even more exhaust flow with this MBRP Down Pipe. MBRP down pipes are jig manufactured to ensure total accuracy. Smooth mandrel bends will give you the best flowing down pipes in the industry. Gain extra power and enjoy the EGT reduction as well. Constructed from T409 stainless steel you can count on this pipe lasting for as long as you own your truck.

MBRP Down Pipe Features:

  • 4" T409 Stainless Steel Construction
  • Increase Power & Efficiency
  • Lower Exhaust Gas Temperatures
  • Mandrel Bent & Jig Manufactured
  • T409 Stainless Steel - Lifetime Warranty
  • For more on MBRP call us at 1-859-737-4966.

Reviews

  • Does the end that mounts up to the turbo have a 4 inch inside diameter? Anything Smaller doesn't fit my 3500 5.9 L. Thanks.

    Anthony Large | 4/5/2023

    Down pipe is designed for a stock turbo.

  • Will this fit the 04.5 Cummins?

    Randy | 3/26/2021

    No, 2003-2004 305hp Cummins.