Exhaust. Let’s get real. 2016 F800GS - BMW F800 Riders Forum & Registry



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  1. #1
    TheTheaterGeek's Avatar
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    Ok. I really want to know. What exhaust should I use for the best sound and performance. Is it just a slip on to lose weight or is there a full system that is worth it. Please include links to IN STOCK products if possible. Thanks all!

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  3. #2
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    for me, it was something different and something lighter - i have a 2 bros slip-on - mine came with the baffle and the sound to me is just right - i can be heard but not obnoxiously so -

    oh, and i bought it barely used from a forum member for 100 bucks -
    '13 F800GT
    '93 DR350S

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  5. #3
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    With modern fuel injection systems, aftermarket mufflers generally do very little for performance; their main advantage is less weight. BMW sells Akropovic mufflers for the F bikes. They are lighter, and reports are that the sound is fairly mellow, not obnoxiously loud. They are also very pricey.

    I decided to bite the bullet last fall and got an $80 Chinese muffler from eBay for my F700GS. It weighs 10 pounds less than the OEM muffler. I found it a little bit louder than I wanted, so I pulled the removable end cap, stretched out a Scotch stainless steel mesh scrubbing pad, and pushed it in, then put the end cap back on. The packing took maybe 1 dB off the sound, but also reduced the rasp.

    Somewhat to my surprise, it's holding up well.

    Click image for larger version.

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    Last edited by Selden; 08-31-20 at 08:28 PM.

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  7. #4
    Big Ger's Avatar
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    Do you have a picture with the Two Bro’s exhaust on your bike?? I’m thinking bout buying one. Cycle Gear has them for $445. You got a smoking deal!!

  8. #5
    notacop is offline The original Schwartz Wald Troll
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    A friend with an 1100S had two brothers and it sounded really nice.
    The weight loss would be the most benefit.

  9. #6
    Richard230's Avatar
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    Speaking of mufflers, today I saw a brand new KTM 1290 Adventure and it not only had a well-fed-snake bulge under the engine, but also a really huge muffler alongside the chassis. I assume that level of exhaust equipment is needed to deal with Euro 5 emission requirements.
    Richard - Current bikes: 2016 BMW R1200RS, 2018 16.6 kWh Zero S, 2011 Royal Enfield Bullet 500 Classic, 2009 BMW F650GS, 2020 KTM 390 Duke, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.

  10. #7
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    Three years ago, I took out a F800R for a demo ride at a dealer. It was fitted with a Two Brothers exhaust. I immediately found it obnoxiously loud. Short test ride.

  11. #8
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    Quote Originally Posted by Richard230 View Post
    Speaking of mufflers, today I saw a brand new KTM 1290 Adventure and it not only had a well-fed-snake bulge under the engine, but also a really huge muffler alongside the chassis. I assume that level of exhaust equipment is needed to deal with Euro 5 emission requirements.
    You should see the monster that is under the new 900's. It's not so much the emissions as it is the sound, shall we call it 'tuning'. I read an article about this recently where they said that they needed all that resonant space to keep the noise under the legal limits while still managing to get the sound they wanted and customers expected, just at a lower level. I guess the EU has much stricter noise laws than we do in the US, similar to Cali.


    Back on topic -
    The muffler won't do much, if anything, for performance. For that you'll need a full system that removes the cat along with a fuel controller, modified intake and some time on the dyno to get it tuned. Even with all that effort and expense you'll only end up with a small increase in power, something like 3-4 hp.

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  13. #9
    Kevin313's Avatar
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    Quote Originally Posted by rcb78 View Post
    You should see the monster that is under the new 900's. It's not so much the emissions as it is the sound, shall we call it 'tuning'. I read an article about this recently where they said that they needed all that resonant space to keep the noise under the legal limits while still managing to get the sound they wanted and customers expected, just at a lower level. I guess the EU has much stricter noise laws than we do in the US, similar to Cali.

    .
    True dat! The F900R actually does have a nice sound though in stock trim. The 270 degree firing order helps. I've listened to a few clips with some aftermarket mufflers for the F900 and as far as I can discern, they only sound louder at best, not better.
    I had the Akrapovich full system on my F800ST and really liked it. Supposedly a 2 HP gain but as you mentioned - really looks, less weight and sound without mods.
    2020 F900R Blue

  14. #10
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    This video is one of the best I have seen re pros and cons of OEM vs after-market exhaust systems. https://www.youtube.com/watch?v=3QCIIDSYJLc

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