Do any aftermarket exhausts use the vacuum valves?

cache_miss · 09-20-2019, 11:16 AM

Hi all --

I bought my M5 used the aftermarket RPI mufflers do not make use of the vacuum tubs that shut the valves on the OEM mufflers when at low RPM. Does anyone know if there are any non-OEM exhausts that support the muffler valve system?

Thanks!

core22 · 09-20-2019, 12:39 PM

Dinan, Akrapovic, Eisenmann, and more. Check the 3 sticky posts at the top of this forum for a lot of great, detailed info on exhausts for our cars.

09-20-2019, 11:16 AM	#1
cache_miss Private 11 Rep 62 Posts Drives: 991.1 C4S Join Date: May 2017 Location: Raleigh, NC iTrader: (2)	Do any aftermarket exhausts use the vacuum valves? Hi all -- I bought my M5 used the aftermarket RPI mufflers do not make use of the vacuum tubs that shut the valves on the OEM mufflers when at low RPM. Does anyone know if there are any non-OEM exhausts that support the muffler valve system? Thanks!
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09-20-2019, 12:39 PM	#2
core22 Second Lieutenant 140 Rep 256 Posts Drives: X3 M40i / 911 C4S Join Date: Aug 2015 Location: Southeastern PA iTrader: (5)	Dinan, Akrapovic, Eisenmann, and more. Check the 3 sticky posts at the top of this forum for a lot of great, detailed info on exhausts for our cars. __________________ Current: 2019 911 targa 4 \| GT Silver Metallic 2019 X3 M40i \| Glacier Silver Past: 2013 911 C4S \| 2019 X2 M35i \| 2015 M5 Comp \| 2013 M5 \| 2013 640i \| 2010 535xi \| 2007 525xi
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