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      09-17-2017, 11:54 AM   #25
Solo_M_Tech
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Drives: 2014 M5 6MT
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Quote:
Originally Posted by ///M Power-Belgium
Quote:
Originally Posted by Adenau View Post
This is incorrect. The ACM mod is performed after the Heimholtz chambers. The chambers are retained in all versions of the muffler mod.
Wrong ! Check the connection pipes in the Helmholtz chambers nr: 1 & 2 .
This pipes will be replaced by a straight pipe with a bend for the height difference of the holes .
The Helmholtz chambers will not be functional anymore and your exhaust will drone like a mofo at low rpm's ..
the ACM mod only affects Chambers 3 and 4. not 1&2. therefore the heimholtz Chambers are left intact.
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