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2008 GMC Sierra Exhaust Headers & Manifolds

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Latest Customer Reviews

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Recommend

Reviewed By Daniel A (HELOTES, TX) Reviewed for a 2008 GMC Sierra —1/29/2013 6:57 AM

Use the factory gaskets and go to NAPA and get a steel flange gasket. The paper gaskets will blow. Other than that, love them. Super easy to install.

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Gibson Exhaust Performance Headers Reviews


JEFFC

Reviewed By JEFF C (EVANS MILLS, NY) Reviewed for a 2008 GMC Sierra —9/9/2012 9:59 AM

I NOTICED A BIG POWER GAIN. EASY INSTALL.GREAT PRODUCT. LOVE MY HEADERS.

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2015 Denali 6.2

Reviewed By Bill B (New Hartford, NY) Reviewed for a 2015 GMC Sierra —11/17/2016 3:59 AM

These just added the snap I was looking for from the accelerator you can here and feel the difference in the motor. I partnered this with a K&N 77 series intake and Borla touring exhaust and it brought the 6.2 alive. Better power great sound and picked up 1.5 mpg.

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