E46Fanatics - View Single Post - Whats needed to swap from B25 to B30 intake?
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Old 04-13-2019, 09:56 AM   #5
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Join Date: Dec 2016
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Originally Posted by donBogi View Post
You can use the b30 lower hose and the b30 upper plastic connector to upper hose. You can fit the b25 hose easily on that connector piece and keep the maf

So throttle body, lower hose and the plastic connector to the upper hose

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I mentioned the maf since a bigger maf reads more airflow
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