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      01-09-2013, 10:13 PM   #104
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Drives: 2010 M3 & 2011 458
Join Date: Aug 2009
Location: Westlake Village, CA

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Originally Posted by M54ccibo View Post
Thanks for the info. Tomorrow I'll pay attention to speeds etc. around 2K. If its not bad with the valves closed, I say no biggie.
I'd would definately buy it again, and would actually like 20% louder with the valves open. Just me. It's perfect with the valves closed and wouldn't change a thing. Hope this helps.

And by the way, you can definately feel the difference in performance.

2010 M3 Coupe, 2010 X5 35D
2011 458 Italia, 2013 M5
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