3.0" T4 Turbo Downpipe Exhaust for 1999-2013 Chevy Silverado & GMC Sierra 4.8/5.3/6.0/6.2L vortec LS Flashark
3.0" T4 Turbo Downpipe Exhaust for 1999-2013 Chevy Silverado & GMC Sierra 4.8/5.3/6.0/6.2L vortec LS Flashark
3.0" T4 Turbo Downpipe Exhaust for 1999-2013 Chevy Silverado & GMC Sierra 4.8/5.3/6.0/6.2L vortec LS Flashark
3.0" T4 Turbo Downpipe Exhaust for 1999-2013 Chevy Silverado & GMC Sierra 4.8/5.3/6.0/6.2L vortec LS Flashark
3.0" T4 Turbo Downpipe Exhaust for 1999-2013 Chevy Silverado & GMC Sierra 4.8/5.3/6.0/6.2L vortec LS Flashark
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3.0" T4 Turbo Downpipe Exhaust for 1999-2013 Chevy Silverado & GMC Sierra 4.8/5.3/6.0/6.2L vortec LS Flashark3.0" T4 Turbo Downpipe Exhaust for 1999-2013 Chevy Silverado & GMC Sierra 4.8/5.3/6.0/6.2L vortec LS Flashark3.0" T4 Turbo Downpipe Exhaust for 1999-2013 Chevy Silverado & GMC Sierra 4.8/5.3/6.0/6.2L vortec LS Flashark3.0" T4 Turbo Downpipe Exhaust for 1999-2013 Chevy Silverado & GMC Sierra 4.8/5.3/6.0/6.2L vortec LS Flashark3.0" T4 Turbo Downpipe Exhaust for 1999-2013 Chevy Silverado & GMC Sierra 4.8/5.3/6.0/6.2L vortec LS Flashark

Flashark 3" T4 Turbo Downpipe for 1999–2013 Chevy/GMC 4.8/5.3/6.0/6.2L V8 LS/Vortec Single-Turbo Builds

SKU: FLJN-EXS22-00041002
$168.98 $198.00 SAVE $29.02
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SKU: FLJN-EXS22-00041002

⚠ Please verify full vehicle fitment before placing your order.

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Product Specifications

Built for T4 Single-Turbo 4.8/5.3/6.0/6.2L LS/Vortec Projects

This Flashark 3-inch T4 turbo downpipe is designed for selected 1999–2013 Chevrolet and GMC 4.8/5.3/6.0/6.2L V8 LS/Vortec applications that have been converted to a T4-flanged single-turbo setup. It is not a factory replacement pipe and does not fit a stock naturally aspirated exhaust system.

The downpipe connects directly to a compatible T4 turbocharger outlet and helps route exhaust gases toward your custom mid-pipe or exhaust system. Its 3-inch free-flow design, 90-degree outlet tube, V-band connection, and pre-welded O2 sensor bung give turbo LS builders a cleaner starting point than fabricating the entire downpipe from scratch.

Important: What This Product Fits

  • Fits: Confirmed 4.8L V8 Chevrolet/GMC vehicle applications with a compatible T4 single-turbo conversion.
  • Requires: T4-flanged turbocharger, compatible turbo manifold/up-pipe, and a custom or compatible connection to the remaining exhaust system.
  • Does NOT fit: Stock naturally aspirated exhaust systems.
  • Confirmed Fit: 5.3L, 6.0L, or 6.2L 

Key Features

  • 3-Inch Free-Flow Downpipe: Helps reduce restriction after the turbocharger and supports efficient exhaust evacuation.
  • T4 Turbo Flange: Designed to bolt directly to a compatible T4-flanged turbocharger outlet.
  • 90° Outlet Tube Included: Provides a practical starting point for routing around engine-bay components.
  • V-Band Clamp Connection: Allows a secure, serviceable exhaust connection.
  • Pre-Welded O2 Sensor Bung: Supports wideband O2 sensor installation for tuning; a block-off plug is included when the bung is not used.
  • Mirror-Polished Stainless-Steel Construction: Built to handle heat cycles, vibration, and exhaust exposure.
  • Catless Performance Design: Intended for off-road and competition applications where permitted.

Package Includes

  • 1 × 3.0" T4 Turbo Downpipe
  • 1 × 90° Outlet Tube
  • 1 × V-Band Clamp

Before ordering: Confirm your vehicle has the listed 4.8L V8 engine, a T4-flanged turbocharger, sufficient engine-bay clearance, and a compatible plan for connecting the downpipe to your remaining exhaust system.