Hey Term,

I like your homemade filter. Does it reduced the alternator whine? I finally got my tablet installed and I'm getting the alternator whine but haven't have time to look into it. Do you remember how many round you wrapped it?

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2003 X5 4.4i w/ Sport Pkg, Cold Weather Pkg.
2010 X5 4.8i w/ Sport Pkg at 19,000 miles