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MBRP GM8424 downpipes on white background
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MBRP 2004.5-2010 Chev/GMC 6.6L Duramax 3in Turbo Down Pipe Black

$ 290.28 $ 233.99
$ 233.99

Connect the turbo outlet with the correct application-specific path

MBRP GM8424 is a downpipes identified by its exact manufacturer part number. It is vehicle specific, so the listed years, make, model, engine, drivetrain, body, wheelbase, and factory-exhaust restrictions control compatibility.

Key Features

  • Exact MBRP GM8424 vehicle-specific configuration
  • Black-Coated Aluminized Steel
  • 3-Inch
  • Downpipe
  • Warranty: 1-Year Warranty on Finish

Fitment

Years Make Model Verified Application
2004-2006 Chevrolet Silverado 3500 Manufacturer-listed application
2004-2006 GMC Sierra 3500 Manufacturer-listed application
2004-2010 Chevrolet Silverado 2500 HD Manufacturer-listed application
2004-2010 GMC Sierra 2500 HD Manufacturer-listed application
2007-2010 Chevrolet Silverado 3500 HD Manufacturer-listed application
2007-2010 GMC Sierra 3500 HD Manufacturer-listed application
2007 Chevrolet Silverado 2500 HD Classic Manufacturer-listed application
2007 Chevrolet Silverado 3500 Classic Manufacturer-listed application
2007 GMC Sierra 2500 HD Classic Manufacturer-listed application
2007 GMC Sierra 3500 Classic Manufacturer-listed application

Confirm the complete GM8424 application and all manufacturer restrictions before removing the original exhaust.

Specifications

Detail Value
Manufacturer MBRP
Manufacturer Part Number GM8424
Product Type Downpipes
Fitment Scope Vehicle specific
Tubing or Connection Size 3 inch
Finish Black
Tubing Size 3-Inch
Series ARMOR BLK
Material Black-Coated Aluminized Steel
Warranty 1-Year Warranty on Finish
Type Downpipe
Fuel Type Diesel
Condition New
Warranty 1-Year Warranty on Finish

What's Included

  • One complete MBRP GM8424 downpipes in the exact manufacturer configuration
  • Only application-specific pipes, mufflers, tips, clamps, hangers, and hardware stated or shown for this exact kit are included
  • Unlisted emissions components, adapters, sensors, tools, and unrelated exhaust sections are not included

About MBRP

MBRP develops application-specific performance exhaust systems and precision exhaust components across multiple materials, profiles, and sound levels. Always match the exact product configuration and current manufacturer application data.

Related Parts

  • Use only clamps, adapters, hangers, tips, and replacement sections that match the exact diameter and connection style
  • Confirm any downpipe, mid-pipe, muffler, resonator, or tail section against the same vehicle and exhaust configuration
  • Do not use a related SKU with a different material, finish, size, side, profile, engine, body, or emissions configuration

FAQ

What is the GM8424?

It is MBRP's exact downpipes configuration described on this page.

Is this part vehicle specific?

Yes. Use it only for the verified applications and restrictions in the fitment table.

What should be checked before ordering?

Confirm year, make, model, engine, drivetrain, body, wheelbase, original exhaust, emissions equipment, and every stated exclusion.

What material is used?

Black-Coated Aluminized Steel

Are all installation parts included?

Only components explicitly shown or listed for this exact configuration are included. Do not assume unrelated clamps, adapters, gaskets, sensors, or tools are supplied.

Can it be combined with another exhaust system?

Only when every diameter, connection, routing, clearance, material, and application requirement is compatible. Do not substitute a related part number.

Do emissions rules apply?

Yes. Retain every required emissions device and follow current federal, state, and local sale, installation, noise, and use requirements.

What should be checked after installation?

Inspect alignment, body and chassis clearance, joint sealing, hanger position, and clamp torque after the first complete heat cycle.

Installation Instructions

  1. Allow the exhaust to cool completely and support the vehicle at approved lifting points.
  2. Compare the new part with the original connection, routing, dimensions, hangers, clearances, and emissions requirements before removal.
  3. Remove only the components identified by the manufacturer and retain any factory hardware or emissions device specified for reuse.
  4. Test-fit every section and connection before fully tightening clamps or fasteners.
  5. Align the part away from body panels, wiring, hoses, fuel and brake lines, suspension, drivetrain, spare tire, and heat-sensitive components.
  6. Tighten all connections in the manufacturer sequence, start the vehicle, and inspect for leaks or contact.
  7. Recheck alignment and fastener torque after the first complete heat cycle.

California Proposition 65 Warning: This product may expose you to chemicals including nickel and chromium compounds known to the State of California to cause cancer, birth defects, or other reproductive harm. See www.P65Warnings.ca.gov.

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