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  • Chevy GMC Duramax Diesel
    • Chevy GMC Duramax Diesel 92-00 6.5L
    • Chevy GMC Duramax Diesel 01-04 LB7 6.6L
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    • Ford Powerstroke Diesel
    • Ford Powerstroke Diesel 99-03 7.3L
    • PERFORMANCE
    • EXHAUST
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    • MBRP Exhaust
    • MBRP 4" DOWN PIPE STAINLESS EXHAUST 99-03 FORD POWERSTROKE DIESEL 7.3L
  • MBRP 4" DOWN PIPE STAINLESS EXHAUST 99-03 FORD POWERSTROKE DIESEL 7.3L
  • MBRP 4" DOWN PIPE STAINLESS EXHAUST 99-03 FORD POWERSTROKE DIESEL 7.3L
  • MBRP 4" DOWN PIPE STAINLESS EXHAUST 99-03 FORD POWERSTROKE DIESEL 7.3L
  • MBRP 4" DOWN PIPE STAINLESS EXHAUST 99-03 FORD POWERSTROKE DIESEL 7.3L MBRP 4" DOWN PIPE STAINLESS EXHAUST 99-03 FORD POWERSTROKE DIESEL 7.3L MBRP 4" DOWN PIPE STAINLESS EXHAUST 99-03 FORD POWERSTROKE DIESEL 7.3L

    MBRP 4" DOWN PIPE STAINLESS EXHAUST 99-03 FORD POWERSTROKE DIESEL 7.3L

    MBRP Exhaust

    MSRP: $209.99
    Was:
    Now: $204.99
    (You save $5.00 )
    SKU:
    FS9401-BKSJ
    UPC:
    882963100597
    Condition:
    New
    Weight:
    15.00 LBS
    Width:
    17.00 (in)
    Height:
    7.75 (in)
    Depth:
    42.75 (in)
    Shipping:
    Free Shipping

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    Product Description

    MBRP ARMOR Plus 4-Inch Stainless Steel Turbo Downpipe

    1999-2003 Ford F-250 F-350 Super Duty 7.3L Power Stroke Diesel
    Part Number: FS9401

    Upgrade the exhaust flow of your Ford F-250 or F-350 Super Duty equipped with the 7.3L Power Stroke diesel engine with the MBRP ARMOR Plus Turbo Downpipe. This 4-inch replacement downpipe is designed to provide a smoother exhaust path from the turbocharger while reducing restriction compared with the factory downpipe.

    Constructed from corrosion-resistant T409 stainless steel, the ARMOR Plus downpipe delivers dependable durability for demanding diesel truck applications. Precision mandrel bending helps maintain consistent tubing diameter through the bends, promoting improved exhaust flow and supporting efficient turbocharger operation.

    Designed specifically for the 1999-2003 Ford Super Duty 7.3L Power Stroke platform, this component can be used as part of a compatible exhaust upgrade. It is a standalone turbo downpipe and does not include a complete exhaust system, muffler, tailpipe, or exhaust tip.

    Features

    • MBRP ARMOR Plus Series exhaust component
    • Corrosion-resistant T409 stainless steel construction
    • 4-inch turbo downpipe
    • Designed for the 7.3L Power Stroke diesel engine
    • Mandrel-bent tubing for smooth exhaust flow
    • Designed to reduce exhaust restriction and backpressure
    • May help improve turbocharger response
    • May help reduce exhaust gas temperatures under certain operating conditions
    • Precision-manufactured for vehicle-specific fitment
    • Natural stainless steel finish
    • Standalone replacement downpipe component
    • Backed by MBRP's lifetime limited warranty

    Specifications

    • Brand: MBRP
    • Part Number: FS9401
    • Series: ARMOR Plus
    • Product Type: Turbo Downpipe
    • Material: T409 Stainless Steel
    • Pipe Diameter: 4 inches
    • Construction: Mandrel-Bent Tubing
    • Finish: Natural Stainless Steel
    • Fuel Type: Diesel
    • Engine: 7.3L Power Stroke
    • Muffler: Not Included
    • Exhaust Tip: Not Included
    • Complete Exhaust System: No
    • Manufacturer Warranty: Lifetime Limited Warranty

    Vehicle Fitment

    • 1999-2003 Ford F-250 Super Duty - 7.3L Power Stroke Diesel
    • 1999-2003 Ford F-350 Super Duty - 7.3L Power Stroke Diesel

    Fitment Note

    Designed for applicable 1999-2003 Ford F-250 and F-350 Super Duty trucks equipped with the 7.3L Power Stroke turbo diesel engine. Verify vehicle year, engine, original exhaust configuration, and compatibility with the remaining exhaust components before ordering.

    Important Fitment Exclusion: Not compatible with vehicles equipped with a catalytic converter. This downpipe must not be installed in a manner that removes or bypasses legally required emissions equipment.

    Important: FS9401 is a standalone 4-inch turbo downpipe only. It does not include a complete turbo-back exhaust system, muffler, tailpipe, or decorative exhaust tip. Confirm the required connection hardware and compatibility with the existing exhaust system before installation.

    California Proposition 65 Warning: WARNING: This product can expose you to chemicals including nickel (metallic) and chromium (hexavalent compounds), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

    Other Details

    Lifetime Warranty

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