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Replacing the down pipe between the headers and the catalytic converter is especially urgent in turbocharged GMC Sierras, where the addition of high-flowing aftermarket 2007-2017 down pipes produces notable gains in power. Fabricated from long-lived, strong materials like T-304 stainless steel, the down pipes you’ll find on AmericanTrucks are carefully chosen to give the best results for your machine’s performance. 2007-2017 catted down pipes offer big flow increases while including the catalytic converters that make the system using them completely street-legal in most states. If you’re planning on using the truck only on the track or the trail, there’s no reason not to add a 2007-2017 off-road down pipes kit, deleting the catalytic converters to squeeze out the last few drops of power and sound from your Sierra while rendering it illegal to use on road.


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Fitment Includes

  • Classic, Nevada Edition, SL, Z71, Denali, SLE, 1500, and SLT Sierras
  • Engines: 4.3L Vortec V6, 4.8L Vortec V8, 5.3L Vortec V8, 5.3L Flex-Fuel Vortec V8 6.2L VVT Vortec V8, 4.3L EcoTec3 V6, 5.3L EcoTec3 V8, 6.2L EcoTec3 V8 Sierras

*Please see Sierra parts pages for any exceptions.

GMC Sierra 1500 Down Pipes

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Sierra 1500
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