Heat-wrapped stainless 3-inch turbo downpipe for 2011-2016 Chevy GMC Silverado Sierra 2500HD 3500HD 6.6L LML Duramax diesel, with V-band flanges, an oxygen-sensor bung, and a hanger tab
V-band flange, hanger tab, and band clamp securing the exhaust heat wrap on a stainless turbo downpipe
Turbo-outlet V-band flange of a wrapped stainless downpipe with an oxygen-sensor bung and band clamp
Wrapped 3-inch turbo downpipe with both V-band flange openings measured using a tape
Heat-wrapped stainless turbo downpipe with a four-bolt exhaust flange, a V-band turbo connection, and an oxygen-sensor bung
Wrapped downpipe construction: a threaded oxygen-sensor bung, a band clamp over the heat wrap, and a flange with two bung ports and TIG welds
Three-bolt exhaust flange and V-band connector of a stainless downpipe measured across their openings with a tape
Black-coated 3-inch turbo downpipe wrapped in exhaust heat wrap with band clamps, a hanger tab, and a three-bolt exhaust flange
Black-coated wrapped downpipe construction: threaded oxygen-sensor bungs, a three-bolt flange with a hanger tab, and a band clamp over the heat wrap
Black-coated three-bolt exhaust flange and V-band connector measured across their openings with a tape
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Heat-wrapped stainless 3-inch turbo downpipe for 2011-2016 Chevy GMC Silverado Sierra 2500HD 3500HD 6.6L LML Duramax diesel, with V-band flanges, an oxygen-sensor bung, and a hanger tabV-band flange, hanger tab, and band clamp securing the exhaust heat wrap on a stainless turbo downpipeTurbo-outlet V-band flange of a wrapped stainless downpipe with an oxygen-sensor bung and band clampWrapped 3-inch turbo downpipe with both V-band flange openings measured using a tapeHeat-wrapped stainless turbo downpipe with a four-bolt exhaust flange, a V-band turbo connection, and an oxygen-sensor bungWrapped downpipe construction: a threaded oxygen-sensor bung, a band clamp over the heat wrap, and a flange with two bung ports and TIG weldsThree-bolt exhaust flange and V-band connector of a stainless downpipe measured across their openings with a tapeBlack-coated 3-inch turbo downpipe wrapped in exhaust heat wrap with band clamps, a hanger tab, and a three-bolt exhaust flangeBlack-coated wrapped downpipe construction: threaded oxygen-sensor bungs, a three-bolt flange with a hanger tab, and a band clamp over the heat wrapBlack-coated three-bolt exhaust flange and V-band connector measured across their openings with a tape

Flashark 3" Turbo Downpipe for 2011–2016 Chevy/GMC 6.6L Duramax

SKU: FLES08046
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SKU: FLES08046
Style: 2011–2015 — V-Band Silver

⚠ Please verify full vehicle fitment before placing your order.

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Product Specifications

Flashark 3" Turbo Downpipe for Chevy/GMC 6.6L Duramax Diesel

The Flashark 3-inch turbo downpipe is designed to replace the factory turbo-outlet downpipe section on selected 2011–2016 Chevrolet and GMC vehicles equipped with a 6.6L V8 Duramax turbo-diesel engine.

Its larger 3-inch tubing and smooth bends are designed to reduce restriction in the turbo-outlet section and support smoother exhaust flow. Durable welded construction and an included heat wrap help the pipe withstand the high-temperature conditions around the turbocharger.

Two connection styles are available. Select the version that matches the connection on your original downpipe:

  • 2011–2015 V-Band Version: For confirmed Silverado and Sierra 2500HD/3500HD applications using a V-band connection.
  • 2015–2016 3-Bolt Version: For confirmed Silverado, Sierra, Express and Savana applications using a 3-bolt flange connection.

Important for 2015 vehicles: Some 2015 vehicles may use a V-band connection, while others may use a 3-bolt flange. Inspect the factory connection before placing your order.

Key Features

  • 3-inch downpipe designed for selected 6.6L Duramax turbo-diesel applications
  • Available with V-band or 3-bolt flange connection
  • Smooth-bend tubing designed to support improved exhaust flow
  • Durable welded construction
  • Heat wrap included to help manage under-hood heat
  • Silver and black finishes available on selected variants

What This Product Is

This product replaces the turbo downpipe section. It is not a complete DPF, EGR or DEF delete kit, and it does not include components for removing those systems. The downstream exhaust and emissions equipment are not included with this product.

Package Contents

  • 1 × 3-inch turbo downpipe in the selected connection style and finish
  • 1 × heat wrap
  • 2 × stainless-steel heat-wrap retaining ties/clamps

Please review the product images before installation. Reuse of some factory hardware may be required unless additional hardware is specifically shown in the package image.

Installation

Professional installation is recommended. Allow the exhaust system to cool completely before removal. Confirm that the flange style, sensor-port location, mounting points and overall pipe shape match the original downpipe before beginning installation.

Shipping, Returns & Warranty

  • Orders are normally dispatched within 1–2 business days.
  • Unused and uninstalled products may be returned within 30 days in their original packaging, subject to the Flashark return policy.
  • Return-shipping coverage applies to confirmed product-quality or fulfillment issues; change-of-mind returns may be subject to the published policy.
  • Covered by a 12-month limited warranty against eligible manufacturing defects.