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air induction on headers?


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Old 05-12-2008, 04:45 PM   #1
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air induction on headers?

i want to get a set of headers for my 98' Envoy 4.3L, but i dont know what the guys are asking about when they want to know if i have air induction or not. could someone help me out and explain what it is and if i would have it or not, thanks.
Old 05-12-2008, 09:34 PM   #2
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Re: air induction on headers?

Air injection, if your truck has it you will notice a metal fitting on the front-most exhaust port on the manifolds themselves that then go to rubber tubing and meet somewhere in the middle near the fan. Then it switches back to a hard line and on down to an electric air pump that sits on the passenger side under the radiator.
Old 05-13-2008, 04:54 AM   #3
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Re: air induction on headers?

Quote: Originally Posted by MINTSICK
Air injection, if your truck has it you will notice a metal fitting on the front-most exhaust port on the manifolds themselves that then go to rubber tubing and meet somewhere in the middle near the fan. Then it switches back to a hard line and on down to an electric air pump that sits on the passenger side under the radiator.
thanks man, ill check that when i get back to the states...but what is it for? emission system?
Old 05-13-2008, 09:51 AM   #4
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Re: air induction on headers?

Yup it's an emissions item.
Old 05-14-2008, 10:25 AM   #5
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Re: air induction on headers?

I have that on my 01 sonoma 2wd 4.3. Installed JBA Shortys
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