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      08-20-2012, 02:34 AM   #2
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Drives: 13' F30 328i 6MT
Join Date: Mar 2012
Location: NJ

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After seeing a stock speaker ( L7 cause its what I had on hand ) It had a stepped lip that measured 8mm ( 5/16 ) Then there was a rubber lip after that. HMMM ..

My brain started spinning and I started to think, what If I gut this stock speaker as a template for an adaptor and see what we can do...

And we begin : Below is some pics and measurements from the hollowed out bracket trimmed off the speaker.

Details =
  • L7 Driver w/ rubber lip = 1/2 inch ( 12.7mm )
  • Raised lip without rubber lip = 5/16 ( 8mm )

The rubber lip is removed when the speaker is gutted so we are left with a lip of 12.7mm.
13 F30 328i Sport 6MT
95 E36 325i Vert 5MT
92 Sentra SE-R SR20DET DET Build Thread
08 E90 328i Sport [sold]
89 E30 325is [sold & missed]

Last edited by QUiKSR20; 08-20-2012 at 03:36 AM.