Quote:
Originally Posted by goodhart
People use 4" intakes on 16g's (2.xx"") on DSM's, why not an Evo? 
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I was just curious about the physics behind it. I'm one of those IT guys that isn't good at math.
The heresay is that you can't scale the X's maf on a 4" housing, which is why most vendors neck them down. I'm taking that to mean that 3.5" may be fine and that's what we're looking at.