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
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

$119.99 $156.00 SAVE $36.01
Style: 2011–2015 — V-Band Silver
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SKU: FLES08046
⚠ Please verify full vehicle fitment before placing your order.
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Product Specifications

3-Inch Turbo Downpipe for Chevy Silverado and GMC Sierra 6.6L Duramax Diesel

Replace the factory turbo-outlet downpipe section on selected 2011–2015 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD trucks with a 6.6L LML Duramax turbo-diesel engine. The 3-inch tubing and smooth bends are designed to reduce restriction in this section and support smoother exhaust flow. Welded construction and the included heat wrap help the pipe withstand heat near the turbocharger.

This page also offers a 3-bolt flange version for listed 2015–2016 Silverado, Sierra, Chevrolet Express and GMC Savana applications. Select the version that matches your original connection; for 2015 vehicles, inspect the factory pipe rather than choosing by model year alone.

Specifications

Specification Details
Part type Turbo-outlet downpipe section
Nominal tubing diameter 3 inches
Connection styles V-band or 3-bolt flange, depending on selected variant
Finish options Silver; black on the listed 3-bolt variant

Key Features

  • Turbo-outlet section: Replaces the factory downpipe section rather than the complete downstream exhaust or emissions system.
  • Smooth-bend tubing: Designed to support smoother flow through the turbo-outlet section.
  • Welded construction: Built for the high-temperature area near the turbocharger.
  • Two connection styles: Choose V-band or 3-bolt flange to match the factory connection.
  • Heat wrap: Included to help manage under-hood heat.

What Is Included

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

Check Before Ordering

  • Inspect the original downpipe connection, particularly on 2015 vehicles, and compare its flange, pipe shape, mounting points and sensor-port locations with the selected product images.
  • For a 2016 Duramax downpipe, select a listed 3-bolt flange variant only after confirming that the original vehicle connection matches. The V-band variant is listed for 2011–2015 trucks.
  • This product is for the listed diesel applications, not gasoline engines or unlisted LBZ, LMM or L5P Duramax applications.
  • It is not a complete DPF, EGR or DEF delete kit; downstream exhaust and emissions equipment are not included. Do not use it to remove, bypass or disable required emissions-control equipment.
  • Some factory hardware may need to be reused unless additional hardware is specifically shown in the package image. Professional installation is recommended; allow the exhaust to cool completely before removal.

Shipping & Returns

Free U.S. Shipping: Orders are typically processed within 1–2 business days and delivered within 7–9 business days. Additional charges may apply to remote areas.

30-Day Returns: Unopened and unused items in their original packaging may be returned within 30 days of receipt. Return shipping is covered for verified quality issues.

Worry-Free Delivery: Optional protection against eligible loss, theft, delay, or transit damage is available at checkout.