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I have MAF on my M30 - M535i euro engine (archive)
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Posted by Duke, 85 M535i----AKA (Valve Cover) on January 12, 2002 at 08:17:46:

In Reply to: AFM upgrade? posted by Ben on January 11, 2002 at 20:23:46:

I bought my kit from Modern Performance, http://www.modernperformanceinc.com/
The kit comes calibrated to your "flapper box", you provide the numbers of your unit, and has and air/fuel adjustment for idle and full running. This is done by a separate back box that has two potentiometers on it. This box is mounted in the engine compartment not passenger. I got my kit for $580 and it KICKS BUTT. I have a lot more power at 3K rpm and over. I imagine with the M5 engine you would see even more. Well worth the money. I will be taking the car to a dyno next week and will get air/fuel dialed in.

The only better performance upgrade I have done thus far is the MM lightened flywheel.

Hope this helps,
Duke
85 M535i


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