KTM 690 enduro/SMC exhaust thread

Discussion in 'Thumpers' started by greengoose, Jul 20, 2008.

  1. DrKayak

    DrKayak Retro Rider

    Joined:
    Mar 2, 2010
    Oddometer:
    999
    Location:
    Shingle Springs CA
    I'm looking for a free-flowing reasonably quite slip on with a spark arrestor.

    What options are there?

    I was all set to get the KTM power parts slip on then the KTM dealer said it did not have a spark arrestor.

    Thanks for any input...
  2. tyrsmkkyle

    tyrsmkkyle off the ground.

    Joined:
    Jul 9, 2013
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    249
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    St louis mo, by the big place with airplanes
    i was looking into the powercore, im not sure about the quiet part tho.
  3. Bike Nomad

    Bike Nomad Been here awhile

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    Central Newfoundland, Canada
  4. DirtVader

    DirtVader Adventurer

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    Jan 30, 2014
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    Sudbury ON
    This is bad news for me then. My bike came with the powerparts can, I figured since it was on a road bike it had one.

    [​IMG]

    This is in the end of the exhaust, I'm assuming it's a silencer then or some form of "quiet" insert?

    And for anyone considering the powerparts exhaust, here's something to consider:

    [​IMG]
  5. DrKayak

    DrKayak Retro Rider

    Joined:
    Mar 2, 2010
    Oddometer:
    999
    Location:
    Shingle Springs CA
    Yep, lame KTM would make a slip-on for an Enduro without a spark arrestor. Dealer could be wrong, wouldn't be the first time..or second time. :lol3

    I used to ride my Supermoto to the National Forest with no clue about spark arrestors. As much time as I plan to spend there on the 690 I would like to give the rangers as few reasons as possible to hassle me.

    I'm going to try a FMF Q4. Designed to be quite and $225 less than the power parts one..
  6. fluff34567

    fluff34567 Long timer

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    Jul 13, 2010
    Oddometer:
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    Location:
    choco land AKA switzerland
    I guess a spark arrestor is a US thing? No requirement that I know of in europe and as ktm is in Austria. .....

    Sent from my GT-I9505 using Tapatalk 2
  7. LukasM

    LukasM Long timer

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    Nov 15, 2006
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    On a RTW ride - currently touring the U.S.
    Spark arrestor is indeed a US thing, in Europe you need the "E"marking to be legal, and to keep the stock DB-killer insert in.
  8. MeinMotorrad

    MeinMotorrad Long timer

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    Sep 21, 2012
    Oddometer:
    6,727
    Location:
    UK for now.
    I've no problems with that can on my Aus/UK '12 model, not even near indicators. Is the toasted indicator something specific to US models and specific MY's, or has it been seen in other countries?
  9. whskythrtle1

    whskythrtle1 n00b

    Joined:
    Mar 18, 2014
    Oddometer:
    1
    Location:
    gorgeous kootenays
    Hi guys Im new here so sorry if this has already been asked. Looking to get a new full exhaust and have been looking at the fmf apex with powerbomb header or full Akra titanium with header. Money isn't really an object but don't like to waste it if the apex is near as good. That Akra does look very sexy.
  10. LethPhaos

    LethPhaos Been here awhile

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    Aug 16, 2012
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    Belgistan
    All I have to add is that the Akra does sound distinct (much deeper) than the other exhausts I've heard. I never heard an apex though... I quite like the deeper bark

    Sent from my ST23i using Tapatalk
  11. TheMuffinMan

    TheMuffinMan Forest Ranger Magnet Supporter

    Joined:
    Mar 31, 2010
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    The Q4 is not quiet. Though after 8500 miles or so it might just need a repack.
  12. palmstatecrawler

    palmstatecrawler Been here awhile

    Joined:
    Apr 13, 2013
    Oddometer:
    519
    Location:
    Columbia, SC
    I bought the apex and the akra and settled on the akra. The apex is way too loud. I had my friend take the bike down the street and i could hear it clearly two blocks away. I like loud pipes but the apex is in the extreme side. After settling on the akra I went ahead and bought the header and carbon covers. I dig it.

    [​IMG]

    [​IMG]
  13. RB450

    RB450 Been here awhile

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    Oct 13, 2008
    Oddometer:
    559
    Location:
    Kintnersville, PA
    Apex is definitely loud. I like mine! It's not obnoxious unless you're on the pipe. Ok, so it's always obnoxious!🙉🙉


    Sent from my iPhone using Tapatalk
    Buildzall likes this.
  14. ktm1

    ktm1 StIlL lOsT

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    Aug 6, 2013
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    63
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    HB/ATL

    I have a 13 with a wings. It's great but I have integrated signals in my brake lamp.
  15. EPMD

    EPMD Been here awhile

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  16. drunkenrich

    drunkenrich Been here awhile

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  17. Thomas B.

    Thomas B. desert racer

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    Location:
    Switzerland and around the globe
    Hi EPMD,
    is the Wings louder than the original exhaust?
    thanks for your answer
    Thomas
  18. mikrow

    mikrow Where'd my bike go?

    Joined:
    Nov 6, 2008
    Oddometer:
    632
    Location:
    Santa Fe, NM

    :ear

    The Wings website says:

  19. Yellow Pig

    Yellow Pig Allergic to asphalt! Supporter

    Joined:
    Oct 28, 2004
    Oddometer:
    9,828
    Location:
    Thousand Oaks, CA
    So I've got Wings exhaust installed on both my KTM 690 and KTM 530 and tested out both the large and the small inserts for dB levels and was not quite happy w/ the noise level.

    I wanted to knock down the dB without restricting exhaust flow too much so I had a buddy weld on a down-turn.


    Here are the before and after results of this exhaust mod. Levels taken w/ a cheap radio shack dB meter. Bikes were placed in the middle of a grassy yard and measurements taken from 24" @ a 45 degree angle from the exhaust tip.

    [​IMG]

    I feel no noticeable performance loss, but the drop in dBs is significant, specially when you consider that dBs are logarithmic.


    30 dB is an increase of 1000X in power
    20 dB is an increase of 100X in power
    10 dB is an increase of 10X in power
    6 dB is an increase of 4X in power
    3 dB is an increase of 2X in power
    2 dB is an increase of 1.6X in power
    1 dB is an increase of 1.25X in power
    0 dB is no increase or decrease in power
    -1 dB is a decrease of 20% in power
    -2 dB is a decrease of 37% in power (roughly a decrease of 1/3)
    -3 dB is a decrease of 50% in power
    -6 dB is a decrease of 75% in power
    -10 dB is a decrease of 90% in power
    -20 dB is a decrease of 99% in power
    -30 dB is a decrease of 99.9% in power


    Source: http://www.microwaves101.com/encyclopedia/decibels.cfm



    The exhaust tips mounted:

    [​IMG]

    [​IMG]

    [​IMG]


    The welding was done by MommysLittleMonster here in the ADV Rockies
  20. Dotbond

    Dotbond Africa, Africa

    Joined:
    Jun 18, 2006
    Oddometer:
    897
    Location:
    Dunedin. New Zealand
    I like that idea. Been wanting to quiet down my Wings as well.
    Thanks for taking the time to post the info.