Author [NL] [FR] [ES] [DE] [SE] [IT] Exhaust modification  (Read 14359 times)

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  • Offline browning

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    Offline browning

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    Exhaust modification
    on: May 09, 2015, 12.19 pm
    May 09, 2015, 12.19 pm
    What I did was take a 1 inch pointed sharp bar and punched a hole in the rear baffle plate of the muffler while still on the bike. (Very Easy) This made the exhaust tone deeper but not louder. It will also let the engine breath easier and run cooler without changing the mapping or parameters of the ECU. If you want the tone to be deeper punch a larger hole in the rear plate or if you want it louder punch a hole in the baffle plate ahead of the rear one but there's no turning back once the front plate is altered. In doing this small easy mod this has saved me the price of an aftermarket silencer but this may not be for everyone. Some people may still want to change the looks of their silencer with another. Any how, I hope this will help someone with their decisions of exhaust tones. In my opinion if you are not happy with the change of the sound on the stock exhaust you are not out any money because you will buy an aftermarket anyway.

    browning

  • Offline azgman   us

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    Offline azgman

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    Re: Exhaust modification
    Reply #1 on: May 09, 2015, 06.33 pm
    May 09, 2015, 06.33 pm
    "baffle plate"? A picture would help to clarify exactly what you are talking about. Thx!
    Serial BMW rider

  • Offline Mustangpilot   nl

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    Offline Mustangpilot

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    Re: Exhaust modification
    Reply #2 on: May 09, 2015, 06.47 pm
    May 09, 2015, 06.47 pm
    "1 inch pointed sharp bar"? Short/long/wide?  :153:  :017:
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  • Offline browning

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    • #3

    Offline browning

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    Re: Exhaust modification
    Reply #3 on: May 09, 2015, 07.06 pm
    May 09, 2015, 07.06 pm
    If you look in the back of the muffler you will see a tin plate. Get a two foot round bar and grind it to a point, Center it on that plate and hit it with a sledge hammer. It will pierce a hole easily in the plate and keep hitting it until the bar has passed through. Done. It sounds like a crude way of doing it but it's the easiest way. You can use a smaller diameter bar first if you want to then increase in size to alter the deepness of the tone. You will be pleased with the sound.
    Last Edit: May 09, 2015, 09.37 pm by browning

  • Offline silverstripes   gb

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    Re: Exhaust modification
    Reply #4 on: May 09, 2015, 10.56 pm
    May 09, 2015, 10.56 pm
    I did a similar thing on a Harley a few years back, but used a 15mm hole saw, this may be an alternative to the hammer approach  :047:
    It wasn't me !!

  • Offline browning

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    Offline browning

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    Re: Exhaust modification
    Reply #5 on: May 10, 2015, 12.51 am
    May 10, 2015, 12.51 am
    *Originally Posted by silverstripes [+]
    I did a similar thing on a Harley a few years back, but used a 15mm hole saw, this may be an alternative to the hammer approach  :047:
    Yes I have also used a hole saw before but this way just seemed to be easier because of the depth of the rear baffle plate. Both ways will give the same result.

    Browning

  • Offline adventure boy

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    Offline adventure boy

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    Re: Exhaust modification
    Reply #6 on: May 11, 2015, 09.28 pm
    May 11, 2015, 09.28 pm
    I just fitted a Remus and left the baffle out sounds nice and supposed to be 6 bhp more
    Not sure about that but its about 5kg lighter !!

  • Offline browning

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    Offline browning

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    Re: Exhaust modification
    Reply #7 on: May 12, 2015, 12.05 am
    May 12, 2015, 12.05 am
    *Originally Posted by adventure boy [+]
    I just fitted a Remus and left the baffle out sounds nice and supposed to be 6 bhp more
    Not sure about that but its about 5kg lighter !!
    Does it backfire on deceleration with the Remus?