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      10-11-2012, 12:14 AM   #2
Doctor///M
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Drives: 2013 E70 X5M
Join Date: Feb 2012
Location: USA

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2013 BMW X5M  [0.00]
2009 BMW 335i  [0.00]
2015 M3  [4.76]
bottom line - if you don't have $$$ to spend on an exhaust, go for it. It does throw a hidden code, but not a warning code. It doesn't create/lose any noticeable performance. I upgraded to the PE and haven't really felt the 5hp gains that it claims to add. Top speed... no. Who drives at 155mph anyway? If you do, you should be driving on the track... or the autobahn. The harmful part is still unclear. Not sure if the vacuum is there solely as a sound damping device or for something else.
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2013 E70 X5M /l\ Space Grey /i\ Full Silverstone Leather /l\ LED Headlights /i\ Comfort Access /l\ HUD
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