MBRP GM8428 Armor BLK Turbocharger Downpipe for 2015-2016 GM Duramax 6.6L, 3-Inch

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. Armor BLK Turbocharger Down Pipe; 3 in.; Black Coated; For Use w/3 Bolt Flange Style Connection; 4 in. Outlet Diameter Tip; Only Works With A 3 Bolt Flange Style Connection.

• 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

Upgrade the exhaust flow of your compatible GM Duramax diesel with the MBRP GM8428 Armor BLK Turbocharger Downpipe. Designed as a direct replacement for the restrictive factory downpipe, this 3-inch downpipe helps improve exhaust flow, heat retention, fuel economy potential, and overall engine performance. Its black-coated finish provides a clean appearance while supporting durability in demanding under-vehicle environments.

The MBRP GM8428 is engineered for applications using a 3-bolt flange-style connection and features a 4-inch outlet tip diameter. MBRP testing indicates up to 20 percent greater flow than stock, along with potential gains of up to 21 horsepower and 24 lb.-ft. of torque. The freer-flowing design also produces a richer diesel exhaust sound. Installation is intended to be a direct replacement, but verify the vehicle’s connection style and configuration before ordering.

Specifications and technical data:

• Brand: MBRP
• Part Number: GM8428
• Product Type: Turbocharger downpipe
• Application: GM Duramax 6.6L diesel
• Downpipe Diameter: 3 inches
• Outlet Tip Diameter: 4 inches
• Connection Type: 3-bolt flange style
• Finish: Black coated Armor BLK

What's included: One MBRP GM8428 turbocharger downpipe kit. Fitment includes select 2015 Chevrolet Silverado 2500 HD and 3500 HD models and 2015 GMC Sierra 2500 HD and 3500 HD models equipped with the GM Duramax 6.6L diesel engine; confirm exact vehicle configuration before purchase. This product is not CARB approved and is not for sale or use in California. Removal or modification of factory catalytic converters may violate emissions laws in your jurisdiction. Verify that intended use is permitted by applicable federal, state, and local regulations.

Features:

• Direct Replacement: Designed to replace the restrictive factory downpipe on compatible GM Duramax applications.
• Increased Exhaust Flow: Delivers up to 20 percent greater flow than stock for improved exhaust system breathing.
• Performance Potential: Supports gains of up to 21 horsepower and 24 lb.-ft. of torque, depending on vehicle setup and supporting modifications.
• Durable Black-Coated Finish: Armor BLK coating helps provide a clean appearance and greater heat retention in demanding operating conditions.

Fitments:
2015 Chevrolet Silverado 2500 HD High Country
2015 Chevrolet Silverado 2500 HD LT
2015 Chevrolet Silverado 2500 HD LTZ
2015 Chevrolet Silverado 2500 HD WT
2015 Chevrolet Silverado 3500 HD High Country
2015 Chevrolet Silverado 3500 HD LT
2015 Chevrolet Silverado 3500 HD LTZ
2015 Chevrolet Silverado 3500 HD WT
2015 GMC Sierra 2500 HD Base
2015 GMC Sierra 2500 HD Denali
2015 GMC Sierra 2500 HD SLE
2015 GMC Sierra 2500 HD SLT
2015 GMC Sierra 3500 HD Base
2015 GMC Sierra 3500 HD Denali
2015 GMC Sierra 3500 HD SLE
2015 GMC Sierra 3500 HD SLT
2016 Chevrolet Silverado 2500 HD High Country
2016 Chevrolet Silverado 2500 HD LT
2016 Chevrolet Silverado 2500 HD LTZ
2016 Chevrolet Silverado 2500 HD WT
2016 Chevrolet Silverado 3500 HD High Country
2016 Chevrolet Silverado 3500 HD LT
2016 Chevrolet Silverado 3500 HD LTZ
2016 Chevrolet Silverado 3500 HD WT
2016 GMC Sierra 2500 HD Base
2016 GMC Sierra 2500 HD Denali
2016 GMC Sierra 2500 HD SLE
2016 GMC Sierra 2500 HD SLT
2016 GMC Sierra 3500 HD Base
2016 GMC Sierra 3500 HD Denali
2016 GMC Sierra 3500 HD SLE
2016 GMC Sierra 3500 HD SLT

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1