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      08-30-2013, 06:06 PM   #7
titanle
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Drives: 2010 X6 Activehybrid
Join Date: Jul 2012
Location: Vancouver, BC

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Okay so first impression is that the exhaust is now louder, not a lot, but it is noticably louder. The tone has changed as well, its a little raspy now and not as deep as before. It kind of sounds more like a sports car as opposed to an sav. Not bad, but just different. I noticed some drone at about 90km and there was some if you let the rpm get too high at a low speed. One thing that I really like is that now the turbo spool is VERY evident! I could hear them spooling while it was still parked in the garage and the installer was testing it out. I didnt really notice anything power wise, im sure its probably just minimal gains. But Im sure once the downpipes are in, the free flowing exhaust will definitely help with gains.
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