Description
Unlock the full performance potential of your 6.6L gas-powered Silverado HD or Sierra HD with the Stainless Works 1-7/8” Long Tube Header Kit. Engineered to improve exhaust flow and enhance throttle response, this system is the perfect upgrade for owners seeking increased horsepower, a deeper exhaust tone, and compatibility with factory or aftermarket systems.
The headers feature 1-7/8” mandrel-bent primaries that feed into high-flow 3” collectors with integrated merge spikes—promoting smoother exhaust scavenging for improved engine efficiency. The kit includes high flow catalytic converters and your choice of a Y-pipe or X-pipe, allowing you to tailor the exhaust tone and optimize flow to suit your performance goals.
Designed as a factory-connect system, this header kit bolts directly to your OEM exhaust or seamlessly integrates with Stainless Works' Redline or Legend cat-back systems. Whether you're running stock or upgrading to a full true-dual setup, this header kit gives you the flexibility and performance to match.
Constructed from premium 304 stainless steel and TIG welded for maximum durability, these headers are built in the USA and backed by Stainless Works' limited lifetime warranty—offering unmatched reliability and quality.
Key Features:
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Fits 2020–2023 Silverado HD and Sierra HD 6.6L Gas engines
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1-7/8” mandrel-bent primaries for balanced performance and flow
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Includes high flow catalytic converters for enhanced power and emissions compliance
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3” collectors with integrated merge spikes for efficient scavenging
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Factory-connect design for bolt-on fitment to OEM or Stainless Works exhaust systems
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Works with both 2WD and 4WD setups
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Supports all cab and bed configurations (some trimming may be required)
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Built from corrosion-resistant 304 stainless steel
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TIG welded for strength and clean aesthetics
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Made in the USA and backed by a limited lifetime warranty
Fitment:
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Chevrolet Silverado HD 6.6L Gas (2020–2023)
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GMC Sierra HD 6.6L Gas (2020–2023)
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Compatible with 2WD and 4WD models
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Fits all cab/bed configurations
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Factory connect – bolts to stock exhaust or Stainless Works Legend/Redline cat-back systems
Upgrade your Silverado’s performance and tone with the Stainless Works 1-7/8” Long Tube Header Kit – combining bolt-on simplicity with premium craftsmanship and serious power gains.
