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Discussion Starter · #1 ·
Since the intake is off the car, and i see this mod done to many intake plenums, is there any performance to be gained by blocking the egr passage in the intake, and/or removing that tab in the intake plenum? Or should i just leave it well enough alone.
 

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No...egr is only operative at cruise so blocking it does nothing
 

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and make you fail emissions if they test for NOx
 
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