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2014-2018 GMC Sierra Headers

Maximize exhaust flow and unlock hidden horsepower with high-performance 2014-2018 GMC Sierra Headers that eliminate the restriction of factory exhaust manifolds. These precision-engineered components improve exhaust gas scavenging from each cylinder while often reducing underhood temperatures for more consistent performance during demanding driving.

 

Properly designed headers for your 2014-2018 GMC Sierra feature thick flanges that resist warping under heat cycling and strategically sized primary tubes specific to your engine's displacement. Corrosion-resistant materials and high-temperature coatings maintain their appearance and integrity despite the extreme heat environment of your Sierra's engine bay.

 

Optimize performance with high-flow 2014-2018 GMC Sierra Exhaust Systems, complementary 2014-2018 GMC Sierra Exhaust components, and supporting 2014-2018 GMC Sierra Cold Air Intakes for substantial power and sound improvements.
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2014-2018 GMC Sierra Headers

Whether the 2014-2018 headers you’re seeking for your GMC Sierra truck are shorty headers for high-range performance or long-tube headers to boost low to mid range power, AmericanTrucks has the component you want. The 5.3L V8 engine headers include stainless steel designs that are highly corrosion and rust resistant. You can choose between a chrome finish and a ceramic finish – the first providing a gleaming, mirror-like appearance, the second offering a softer, velvety satin look. These headers, as well as the 6.2L V8 headers also available, are sold both separately and with a Y-pipe (mid pipe) with a factory connect. These Y-pipe equipped headers can be either off-road only variants with a deleted catalytic converter, or a catted version that’s street legal (though still providing improved power and sound). AmericanTrucks’ selection is all about giving you as many options as possible so you can find the header perfectly suited to the upgrade you’ve got in mind.

 

Shop All Truck Exhaust Headers & Manifolds

 

Fitment Includes

  • 2014, 2015, 2016, 2017 & 2018 GMC Sierra 1500
  • Base, SLE, Denali, SLT
  • Engines: 4.3L EcoTec3 V6, 5.3L EcoTec3 V8, 6.2L EcoTec3 V8 Sierras

*Please see Sierra parts pages for any exceptions.