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Discussion Starter · #1 ·
on a stock air intake box, other than the tubing going to the intake manifold. there is a tube going to a unit mounted in front of the engine block. can someone tell me what this is, and its purpose?

can i bypass it?

should i bypass it?
 

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Discussion Starter · #3 ·
well, what do people do with it when they put in a new intake? the reason i ask is because im working on a custom/ghetto rig intake
 

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it sucks clean air into the egr system. you can put a breather on it if you don't have a nipple for it on your home depot intake.
 
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