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What size intake pipe?

  #1  
Old 10-25-2012, 02:59 PM
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Default What size intake pipe?

So I have a 3" dia CAI pipe in my car. But I'm trying to look into this and cannot find too much on the matter. I can't even find the pipe diametes companies like K&N use for CAIs. Should I go down to a 2.5" or is 3" good? Does it really matter?
 
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Old 10-25-2012, 03:22 PM
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What matters is the intake resonance, and that all depends upon the design; most likely the factory intake was optimized for mid range torque; who knows where your current intake hits its optimal resonance.
 
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Old 10-25-2012, 05:56 PM
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I made it so I doubt it. However, it is possible to mimic the brands.
 
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Old 10-26-2012, 05:05 PM
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My AEM short ram intake for my 96 Accord is 2.5" in diameter. I'm pretty sure the K&N and Injen ones are the same as well. I'm sure R&D showed that that was the best diameter for all around performance.
 
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Old 10-26-2012, 09:28 PM
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Ok. Thats what I was thinking but wasn't too sure. Thanks.
 
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