Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Straight intake causes a rough takeoff
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Old 11-13-2012, 12:51 PM   #10
mikebontoft
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is the inner diameter the same though? someone mentioned it might be 2.5" ID. those rubber intake tubes are probably a 1/4" wall so that would make sense.

its reading lean because the inner diameter is bigger than stock so its letting more air in than it thinks.

try to find a smaller or thicker tube... match up the I.D. and give it another try.
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