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Old 10-04-2012, 06:55 PM
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bear-avhistory bear-avhistory is offline
2014 435M-Sport/MPPK
Location: NC - USA
 
Join Date: Nov 2006
Posts: 2,091
Mein Auto: 2014 435M-Sport/MPPK
I have mine locked open using the JB4, prior to that I unplugged it in the trunk. My butt dyno can't feel any effect one way or another & I don't see any effect on mileage. I just like the sound.
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Kevin

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