R172 SLK 55 AMG exhaust flaps permanently open solution - Mercedes Benz SLK Forum

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#1 Old 01-05-2014
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R172 SLK 55 AMG exhaust flaps permanently open solution

In case anyone missed it, slk55nor posted a quick and easy solution to having the exhaust flaps permanently open:

https://www.slkworld.com/general-modi...ust-flaps.html
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#2 Old 04-06-2017
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Dont waste your time guys I have already done all that. The car goes on to a "limp" mode and wont rev out after 5k.
There is no way round it unless you want a computer geek to go in and mess about in the ecu
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#3 Old 04-06-2017
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Thanks for your input

FYI Thread is 3 years old 01-05-2014

https://www.slkworld.com/new-members-...d-how-fix.html


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#4 Old 05-02-2017
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Hello
I have this, recommended !!
CHROMETEC. High Quality Tuning für Mercedes-Benz - Mercedes SLK 55 AMG 1712 Tuning mit einer elektronischen Klappensteuerung von Chrometec

Electronic additional flap control for the Mercedes SLK 55 AMG.
Now completely new, the electronic flap control by remote control for the Mercedes SLK 55 AMG.
The sound of the Mercedes SLK 55 AMG in the driving mode '' C '' at Teillast and low engine speeds is almost as poor
describe. This deficiency can now be remedied by our conversion kit for the flap control.
Each of the two rear mufflers of the SLK 55 AMG has an exhaust flap, which can be steplessly operated depending on the power demand of the driver and the engine speed, but at low loads and engine speeds below 2,000 revolutions the flaps remain completely closed. Only when accelerating with a higher load do the exhaust flaps open from 15 degrees up to 50 degrees of opening angle. In driving mode '' S '' at full load and a speed of more than 3900 revolutions, they are then completely opened and you can enjoy the full sound of the 55 AMG.
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#5 Old 05-02-2017
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I just paddle it, leave in first/2nd and get the revs up. Gives me all the joy I need


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#6 Old 05-02-2017
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Quote:
Originally Posted by LeonardoDaBenz View Post
I just paddle it, leave in first/2nd and get the revs up. Gives me all the joy I need
But but but... Len, you cannot ride in 1st and 2nd gears all day.... Alternatively, get a Piecha/Fox exhaust and you can hear the music all through the rev bands.... I love the Fox sport exhaust, it sings a beautiful song (up to 4K rpm - usable rev band for most driving) that will render the HK system mute... permanently. No kidding...

Omo


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#7 Old 05-02-2017
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Quote:
Originally Posted by b82012 View Post
But but but... Len, you cannot ride in 1st and 2nd gears all day.... Alternatively, get a Piecha/Fox exhaust and you can hear the music all through the rev bands.... I love the Fox sport exhaust, it sings a beautiful song (up to 4K rpm - usable rev band for most driving) that will render the HK system mute... permanently. No kidding...
Ya, I know. But I'm cheap (and at $900 plus tax and duties, I can adjust ) . Seriously though, you just need to downshift a gear or two and it's there.

And I know it's sacriligious but the drone does gives me a headache after prolonged hearing. It's nice to have just the wind blowing in my ears


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