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      07-18-2012, 10:56 AM   #73
Nate@IND
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Drives: BMW
Join Date: Oct 2006
Location: Chicago

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Quote:
Originally Posted by cpiguy View Post
Nate, thanks for this thread. Can you explain how the valves work on the Akra system? Can they be controlled from a switch in the car. I had such a switch installed in my 458. Love having the control in my fingers. Does it affect power when they're closed?
The valve on the Eisenmann Sport performance and Akrapovic utilize the the OEM F10 M5 vacuum line. The valves on the OEM system is purely for emissions and is closed during cold start to pre heat the cats. Eisenmann will offer a special order system that comes with a wireless remote to open/close the valve.

Eisenmann wireless remote-
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