Rolloff can be Adjusted by DEALER!!! (archive)
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Posted by Brian Lewis (00 540 Sport) on May 11, 2001 at 18:54:46:
In Reply to: DSP analyzed... posted by JimL on May 11, 2001 at 14:01:26:
(posted from: cx603945-d.ldra1.occa.home.com (24.9.139.126))
You can bring your BMW DSP to any BMW dealer and they can adjust the system to not roll off at 40.I plan to have this done in the near future and anyone who has upgraded their DSP should do so as well to get the missing frequencies.
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