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MBRP

MBRP 15.5-16 GM Duramax 6.6L 3in Down Pipe Kit

SKU: MBRPGM8428
$294.99
Only 10 left
Fitment SupportNeed help? Send us your VIN.
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Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted. Not for sale or use in the state of California.

Installation Instructions
Installation Instructions
  • Direct Replacement. 20% Increased Flow Over Stock. Richer Diesel Sound.
  • 20 Percent Greater Flow Over Stock
  • Will Not Affect Emissions
  • Gains Of +21 Horsepower
  • 24 lb./ft./ Torque Gain
  • Greater Heat Retention
  • Richer Diesel Sound

This Part Fits:

Year Make Model Submodel
2015-2017 Chevrolet Silverado 2500 HD High Country
2015-2017 Chevrolet Silverado 2500 HD LT
2015-2017 Chevrolet Silverado 2500 HD LTZ
2015-2017 Chevrolet Silverado 2500 HD WT
2015-2017 Chevrolet Silverado 3500 HD High Country
2015-2017 Chevrolet Silverado 3500 HD LT
2015-2017 Chevrolet Silverado 3500 HD LTZ
2015-2017 Chevrolet Silverado 3500 HD WT
2015-2017 GMC Sierra 2500 HD Base
2015-2017 GMC Sierra 2500 HD Denali
2015-2017 GMC Sierra 2500 HD SLE
2015-2017 GMC Sierra 2500 HD SLT
2015-2017 GMC Sierra 3500 HD Base
2015-2017 GMC Sierra 3500 HD Denali
2015-2017 GMC Sierra 3500 HD SLE
2015-2017 GMC Sierra 3500 HD SLT
This Part Fits:
Year Make Model Submodel
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Always verify fitment with your VIN before ordering. Contact us if you need help.
SKU MBRPGM8428
Brand MBRP
Type Downpipes
Weight 9.9 lb

Shipping

  • Shipping rates calculated at checkout based on your location
  • Standard shipping (5–7 business days): calculated at checkout
  • Expedited shipping (2–3 business days): available at checkout
  • Overnight shipping: available for most in-stock items
  • Fast dispatch on in-stock orders with tracking provided after fulfillment

Returns

  • 30-day returns on eligible unused, uninstalled parts in original packaging
  • Installed or modified parts cannot be returned
  • Defective items may be covered by the applicable manufacturer warranty
  • Contact our support team to initiate a return or warranty claim

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