Thread: Three Stage Intake Manifold Conversion for 328/325
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      01-19-2012, 12:10 AM   #348
Johnny D
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Drives: 2006 BMW 325i
Join Date: Apr 2011
Location: Hot Springs, AR

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2006 BMW 325i  [9.16]
Quote:
Originally Posted by BoCoMo View Post
Where are we at with this DIY?
Tested and proven it works with gains between 25-50hp. Search for three stage intake in this section and you'll see a thread with dyno graphs.
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