Here's the YouTube vid of the install with some before and after sound clips. The check engine light just came on with E9 and EA catalytic-converter efficiency codes. I suspected this may happen but I'll just tune it out in addition to the secondary air pump once my obd-usb cable gets here.



https://www.youtube.com/watch?v=zYdhPB2Zs6U&t=3s

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2003 E53 X5, 3.0i (titan silver)
1993 Dodge w250 club cab (blue)
1992 Dodge w250 club cab (two tone red & white)