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Bi-modal Rear mufflers - only one outlet black

MY17DIR

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Has anyone else noticed how black the inner outlet with the bi-modal actuator/flapper on each muffler gets really black and each outer one stays really clean?
For reference, relay is pulled so bi-modal flapper is always open. Would have though both would then be the same colour...
 

3rspecB

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When in open position, all the exhaust gas flows out the inner tip which has the bimodal flap.


Resized_20190710_144951.jpeg
 
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abuch47

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Meant to ask this 6 months ago, especially worse after changing the centre to flow better.
 

MY17DIR

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Righto, that makes sense then. So single outlet really then :(
 

Anthony121

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Righto, that makes sense then. So single outlet really then :(
Take the relay out then the valve stays open all the time :)
 

Jackv8

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And get the relay-tap remote off ebay
Is there a option to connect a switch and wire to the factory bi modal relay/fuse to control the on/off state?
 
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