MBRP 3in Black Turbo Downpipe 2011-2015 GM 6.6L Duramax LML

SKU: mbrpGM8427 UPC: 882963117625
In stock - 35 items available
Regular price $358.22

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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 GM8427 is a 3-inch turbo downpipe for the LML Duramax, finished in a high-heat satin black coating. Replacing the factory downpipe opens the tightest section of the exhaust, right off the turbo.

Key Features

  • 3-inch mandrel-bent tubing off the turbocharger outlet
  • Black-coated aluminized steel with a high-heat satin finish
  • CNC machined flanges for accurate alignment
  • Reduces backpressure and lowers exhaust gas temperatures

Fitment

2011-2015 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD with the 6.6L Duramax. Not compatible with the 3-bolt flange connection used on 2015.5 and later trucks.

Product Details

  • Manufacturer Part Number: GM8427
  • Brand: MBRP
  • Component: Turbo downpipe
  • Tubing Size: 3 inch
  • Material: Black-coated aluminized steel

Shipping Height: 8.0

Shipping Length: 22.2

Shipping Width: 13.5

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