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i was wondering how much loss u get in the mz3's mpg after installing a AEM CAI.

What else can be changed in order to keep up that mpg if its that bad? (ie. headers, blah blah, etc.)
 

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From what I have read it seems that a CAI will actually increase your mpg because the engine is running more efficently, but people tend to drive harder after they install it so the mpg goes down. I don't know if there is any truth behind that but it sounds plausible to me.
 

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technically your are supposed to gain mpg. but since most people run the cars HARDER after the install they get less. if you continue to drive conservativly then your mpg should increase slightly, i would guess at least 1-2 mpg.
 
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