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Old 06-05-2012, 06:48 AM   #2250
Macroenie
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Joined: May 2009
Location: Netherlands
Oddometer: 204
Quote:
Originally Posted by bikecat View Post
Anyone used or using a BoosterPlug or Wunderlich controller?

I am curious ... very curious .... I know the BMWs run lean, and want to improve on that.

Cheers
See my post here

The wunderlich controller gives you more options over the rev-range. The other one just fools the injection by use of a temperature related resistance, making it think it is about 10 degrees celsius colder en thus it will richen the mixture.

If you take away the cat. or put a 'sport' exhaust on the MM you will have to take measures for it not running to lean.
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