MBRP 3in Black Turbo Downpipe 2001-2004 GM 6.6L Duramax LB7 CARB Legal

SKU: mbrpGMCA425 UPC: 882963122698
In stock - 6 items available
Regular price $376.75

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Verified Fitment & Application Support

This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.

Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase. Orders shipping to restricted areas may be canceled.

The MBRP GMCA425 is a CARB-compliant 3-inch turbo downpipe for the LB7 Duramax, finished in high-heat satin black. The CARB Executive Order keeps it street legal in California and other states following CARB emissions rules.

Key Features

  • 3-inch mandrel-bent tubing off the turbocharger outlet
  • Black-coated aluminized steel with a high-heat satin black finish
  • CNC machined flanges
  • Direct fit replacement
  • Carries a CARB Executive Order number

Fitment

2001-2004 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD with the 6.6L Duramax LB7.

Product Details

  • Manufacturer Part Number: GMCA425
  • Brand: MBRP
  • Component: Turbo downpipe
  • Tubing Size: 3 inch
  • Material: Black-coated aluminized steel

Shipping Height: 6.2

Shipping Length: 23.9

Shipping Width: 8.3

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