CAI Silencer Removal

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Fusco0520

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You are tuned though right? Cause stock when I removed mine I got a check engine all the time saying crank sensor fault or something. Put them back in and I have never had the issue again. Roush told me they require you to leave them in with the intake. So I’m assuming the MPT tune don’t require the rings.


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Quaesta

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That’s strange. MPT said you can run both the stock or Aef intake with or without the silencer rings regardless of whether you have a tune or not. I have not had any issues either way.
 

MacK88DO

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Cobb stated it is used for crankcase pressure and to leave them in
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Just curious but did you reach out to Cobb directly and ask? Because that is the exact excerpt from their install instructions and why I removed mine because I wanted to maximize the intake noise. Haven’t had a single issue over 2500 miles so far.


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WC114

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Yes I did, I was going to take them out, and spoke to
The Cobb engineer , he said to leave them in. So I'm going to do as they stated for now. Interesting dyno by brew city boost showing they make more power . Never would've thought that.
 

MacK88DO

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It’s pretty frustrating then that they would publish a statement which makes it seem like no big deal if you take them out. Based on the statement I assumed they were simply noise cancellation devices.


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Quaesta

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If you search the Ecoboost forums those guys and gals have been removing them for years with no negative effects.
 
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