Loss of power

The Mac Cai is not all show. Many including me felt a increase in throttle responce expecially pass 3800 rpms.

Gearbanger 101 said:

Turning the Mass Air meter moves the sample tube to the opposite side of the tube and into the incoming air stream to theoretically give you a more accurate air reading. To tell you the truth, the effects are mostly exaggerated and doing so probably won't make the slightest bit of noticeable difference.

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Agreed. Moving the mass air meter probably isn't going to do much for you. All the experts and people with experience agree that the MAC unit and other chrome/metal units should be avoided as well as those with a curve in front of the MAF. Do a search, you'll see what I mean. I know. I had the BBK unit on my car at one point in time but got rid of it in favor of the K&N FIPK unit. I prefer the K&N unit much better.