A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

MAF is 2.5" or 3"?

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Old 09-07-2004, 04:13 PM
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Default MAF is 2.5" or 3"?

Have to get a silicon hose to make an intake.
Old 09-07-2004, 04:52 PM
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Stock maf housing is 2.5" OD.
Old 09-07-2004, 05:42 PM
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Default thx...

so if my intake's inlet is 3", i need a 2.5" to 3" silicon hose, am i right?
Old 09-07-2004, 05:48 PM
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Default or jsut a hose with a 2.5" ID to use as a couple

<center><img src="http://pictureposter.audiworld.com/4477/mvc-208f.jpg"></center><p>depends if you want to put the cone near the MAF or not. I didn't find enough room to get the cone away from the MAF with a reducer as you mention. I had to cute my inlet hose a little to make room for my cone.
Old 09-07-2004, 06:23 PM
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Default Yup coupler. And we also cut down the k&n filter so it would slip on the maf.

Tight space over there.

-jaime
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