67mm CFM TB, Not what I expected? - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
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DURATEC Performance (2003-2007) The place to chat about any Duratec 23, 23E, and 20 engine performance, tuning and exhaust related upgrades.

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Old 04-05-2013, 05:35 PM   #21
WSkobra
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That's weird. Mine felt like it had much better power in midrange but did not kill my bottom end torque. In fact I think my bottom end torque was better. Although the only bad part I found with it is that once its on and the computer relearns it will adjust for fue due to more air coming in. I put my car in the dyno last weekend and found out because of the throttle body the computer adjusted for too much fuel and now my car runs on the rich side, a little to rich to be honest. I recommend to anyone to get the car tuned when doing this upgrade so you can get the max potential power out of the part but you can also adjust the a/f better then the ecu and getting running perfect.
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