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BMW S1000XR
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S1000XR Chat
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Accessories, Mods, and Appearance
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Fitting an Exhaust servo eliminator
04 Oct 23, 05:23 am
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Fitting an Exhaust servo eliminator (Read 5913 times)
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Wildchild
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Wildchild
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Fitting an Exhaust servo eliminator
on:
August 02, 2022, 09:59:33 am
August 02, 2022, 09:59:33 am
Apologies if this has been asked before, but Can someone clear up the need for an ESE. I've just fitted a cobra slip on to my 2019 Gen 1 and theres been a lot of comments on this subject. Can anyone give me a definite answer for or against fitting an ESE and what it will actually give me if I do. Thanks
Antares
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Antares
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Re: Fitting an Exhaust servo eliminator
Reply #1 on:
August 02, 2022, 11:50:09 am
August 02, 2022, 11:50:09 am
Originally Posted by
Wildchild
Apologies if this has been asked before, but Can someone clear up the need for an ESE. I've just fitted a cobra slip on to my 2019 Gen 1 and theres been a lot of comments on this subject. Can anyone give me a definite answer for or against fitting an ESE and what it will actually give me if I do. Thanks
For slip ons, no you don't need an ESE as the flap is in the midpipe just after the cats and big muffler section, and even if it is removed, there is no error codes if you just disconnect the cables.
Wildchild
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Wildchild
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Re: Fitting an Exhaust servo eliminator
Reply #2 on:
August 02, 2022, 01:11:56 pm
August 02, 2022, 01:11:56 pm
Thanks Antares, in your opinion what is the best way to deal with the flap to make the most of my bike, just undo the cables or more if i can. Can I ask what is the purpose of the flap and what benefit do I get from disabling it.
Antares
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Antares
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Re: Fitting an Exhaust servo eliminator
Reply #3 on:
August 02, 2022, 01:25:37 pm
August 02, 2022, 01:25:37 pm
Originally Posted by
Wildchild
Thanks Antares, in your opinion what is the best way to deal with the flap to make the most of my bike, just undo the cables or more if i can. Can I ask what is the purpose of the flap and what benefit do I get from disabling it.
Flap is mainly there for noise purposes, it's fully open above 6k rpm and wont make a difference above that, below that keeps the bike quieter, to "disable" it, simply remove the cables from the motor to the valve, spring tension will keep it open though there have been cases where it slams closed due to pressure at high RPMs but mostly on gen 2s from what i heard. You can just hook it open though with a piece of wire.
Wildchild
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Wildchild
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Re: Fitting an Exhaust servo eliminator
Reply #4 on:
August 02, 2022, 01:34:50 pm
August 02, 2022, 01:34:50 pm
Thanks Antares, really appreciate your knowledgable comments.
esso_sa
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#5
esso_sa
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Re: Fitting an Exhaust servo eliminator
Reply #5 on:
August 02, 2022, 01:41:54 pm
August 02, 2022, 01:41:54 pm
Originally Posted by
Antares
Flap is mainly there for noise purposes, it's fully open above 6k rpm and wont make a difference above that, below that keeps the bike quieter, to "disable" it, simply remove the cables from the motor to the valve, spring tension will keep it open though there have been cases where it slams closed due to pressure at high RPMs but mostly on gen 2s from what i heard. You can just hook it open though with a piece of wire.
I believe on Gen 1 the flap opens as soon as you crack the throttle open and get moving. It’s closed only while idling.
On Gen 2 I can confirm from perosnal experience that it’s fully closed below 6k rpm.
Antares
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Antares
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Re: Fitting an Exhaust servo eliminator
Reply #6 on:
August 02, 2022, 01:43:56 pm
August 02, 2022, 01:43:56 pm
Originally Posted by
esso_sa
I believe on Gen 1 the flap opens as soon as you crack the throttle open and get moving. It’s closed only while idling.
On Gen 2 I can confirm from perosnal experience that it’s fully closed below 6k rpm.
Depends on throttle position below 6k, above that it's just open.
Rotaxracer
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Rotaxracer
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Re: Fitting an Exhaust servo eliminator
Reply #7 on:
August 02, 2022, 02:54:18 pm
August 02, 2022, 02:54:18 pm
Originally Posted by
Antares
Flap is mainly there for noise purposes, it's fully open above 6k rpm and wont make a difference above that, below that keeps the bike quieter, to "disable" it, simply remove the cables from the motor to the valve, spring tension will keep it open though there have been cases where it slams closed due to pressure at high RPMs but mostly on gen 2s from what i heard. You can just hook it open though with a piece of wire.
The only thing i would say about this is I have an ESE on my Gen 2 and I now get pops and bangs like I used to on my Gen 1 but not quite as loud. I have a stock bike apart from the Titanium factory Akra end can. Start up can be a bit fruity as the high RPM but quietens down nicely after that and is in no way too noisy for me.
Its about right unlike a full de-cat or the stubby pipes which for my ears are too loud.
Salem
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Salem
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Re: Fitting an Exhaust servo eliminator
Reply #8 on:
August 02, 2022, 03:23:15 pm
August 02, 2022, 03:23:15 pm
Originally Posted by
Rotaxracer
Start up can be a bit fruity as the high RPM but quietens down nicely after that and is in no way too noisy for me.
funny, i've jus been on a holiday with my stock Gen2 with multiple brand bikes and the fist thing they ask is why i put an aftermarket can on it. I just say no it's standard, wait a minute. Bloody annoying this raised idle, have to start in first gear to avoid potential gearbox clunck damage. They should stop serving beer at BMW HQ.
smithy
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smithy
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Re: Fitting an Exhaust servo eliminator
Reply #9 on:
August 02, 2022, 08:28:15 pm
August 02, 2022, 08:28:15 pm
Originally Posted by
Wildchild
Thanks Antares, in your opinion what is the best way to deal with the flap to make the most of my bike, just undo the cables or more if i can. Can I ask what is the purpose of the flap and what benefit do I get from disabling it.
Gen-1 or Gen-2..?? You don't say which you have..?? If Gen-1... you can indeed remove the cables from the valve, it defaults to open... and is spring loaded "open". It will throw a fault code but not a fault light.
Benefits..?? None really except a deeper tone at all rpms instead of above ~6k. As Antares said, it's a noise/emissions thing. If you want proper benefits, fit a decent set of headers and get a decent tune....it will transform the bike into what it should be instead of the neutered athsmatic thing it is when stock.
I fitted a servo eliminator on mine when I removed the complete servo/cables assembly and fitted Arrow headers...no issues since and it doesn't throw a fault code.
Smithy.
Last Edit: August 02, 2022, 08:40:53 pm by smithy
When I die, I want to go peacefully in my sleep like my Grandfather....not screaming like the passengers in his car..!
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