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Chevy Avalanche Exhaust Headers & Manifolds

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Latest Customer Reviews

JBA Cat4ward Headers Reviews


JBA install

Reviewed By Brett C (ATLANTA, GA) Reviewed for a 2011 Chevy Avalanche —1/18/2015 11:00 AM

The install instructions are poor at best. Many more steps required than listed in guide.

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Gibson Exhaust Performance Headers Reviews


A must buy for any vehicle!

Reviewed By Robert M (MEMPHIS, TN) Reviewed for a 2012 Chevy Avalanche —6/4/2014 9:07 PM

These headers instantly provided more HP and gas mileage. If you are on the fence about purchasing headers, you shouldn't be, these headers are exactly what I was hoping for. I've purchased a cold air intake, gibson dual exhaust and superchips power programmer over the past years. The headers provided the most noticeable HP and MPG gains. Only issue was the lack of detailed instructions when removing exhaust manifolds. Additional tools required, O2 sensor removal required and not mentioned.

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Doug Thorley Headers Reviews


5.3 2013 Silverado

Reviewed By Clinton f (JONESBOROUGH, TN) Reviewed for a 2013 Chevy Silverado —7/25/2016 9:01 PM

I play proball and my buddy on my team has the doug thorley longtubes on his 09 6.2 silverado and he talked about it helping more with Power than even his Tuner. He wasn't lying. As far as installation goes. Just take your time and do it right. Take a day and do it right and it's not bad at all. Once you get the stock headers off putting the new ones on is not bad. Use PB blaster to loosen old headers. Much easier after

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