Just installed BSW Stage 1 speaker upgrade..
 

took me almost 4 hours. The first door took the longest, but once I got the hang of it, it went smoothly. All I can say is, what a difference! I can really hear so much more than I was able to with my original bmw speakers.

Halston was really nice on the phone and the package got to me a day sooner than I expected! I'd recommend BSW to anyone looking for more sound out of their x5's! I plan on getting the sub next...

believe me, thу sub will worth every penny ;)

Thanks for the review :)

Glad I could be of service!