Thread: F15 X5 Tune Thread
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      01-15-2015, 04:46 AM   #34
pdawg
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Drives: 2015 X5 XDrive 35i
Join Date: Sep 2013
Location: Hawaii

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Quote:
Originally Posted by greentrbo95gst View Post
You need to start investing in these at your elevation:
http://www.amazon.com/12010-Racing-F.../dp/B000HBIA1I
I've been told by an engineer that MMT is really bad on your cylinders.....
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