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This product is not compatible with the 2011 328i BMW.
Sorry, there was a problem. Please try again later.These 4" speakers fit under the dash and center area of a Triumph TR6, and if you have a 4" speaker you are replacing, then you are doing what I did, these were replacement speakers - they perform well for what they are, as part of a 4 speaker system, with 2 larger speakers in the back; good power and clarity, mid's, high's, not so much bottom end, but not bad - better than others I've had over the years - hope this helps :)
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