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      01-15-2012, 11:13 PM   #158
scottp999
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Drives: 4runner SR5
Join Date: Mar 2007
Location: MD

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2007 BMW 335  [4.50]
Quote:
Originally Posted by Tiago@VRSF View Post
The biggest factor is air flow. A larger wheel is going to push more air. It's really that simple
Yep - I wonder what the VAC stage 3 head costs? If you put that much more air into the intake manifold it's got to go through the head efficiently.