03 stock muffler gut

Discussion in 'Introductions' started by slimsean, Aug 13, 2012.

  1. slimsean

    slimsean New Member

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    Hello folks, I am new to the vfr world and was wondering can anyone help me. I love my bike, it is by far the best bike i have ever owned . There was 3 things that bothered me about the vfr.
    I didnt like the seat so I bought a sargent seat and that fixed that
    The bars felt low so i bought a set of heli bars and that fixed that.
    The muffler is so quiet and hear is my problem, i dont want to put aftermarket pipes on as i think they change the lines of the bike to much and also my honda side and top cases wont work with aftermarket i believe?

    I have read hundreds of forums on how to gut the stock pipes but i was wondering is this ok for the engine and if so is there a video or anything anywere that shows the best way to do it

    Thanks for reading and hope to hear from yall soon
     


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  2. smack doogle

    smack doogle New Member

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    Gutting the exhaust is really easy.

    1. Take off exhaust from collector under the bike.
    2. Take off heat shields on exhaust (couple screws)
    3. Use a saw or cutting device to cut the ends of the exhaust cans off (you'll see a weld at the end of each can, use this as your guide) cut on the side of the line away from the end of the exhaust can.
    4. Get some muscle and the baffles pull right out from the end you cut off.
    5. Bring ends and exhaust to a welder and have them weld the ends back on.
    6. Enjoy the money saved and that beautiful V4 sound.

    I don't think there is a video but I haven't looked either. There are probably threads on here that go into more detail. The steps above are what I did when I gutted mine on my 2002. I think the stock cans look better than afermarket cans on a 6th gen and the sound is pretty decent when gutted. Not great but good.
     


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  3. Scubalong

    Scubalong Official Greeter?

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    Here is the link for Video on you tube

    Google
     


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  4. 34468 Randy

    34468 Randy Secret Insider

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    Wrong link Long. That is Google home page.
     


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  5. Scubalong

    Scubalong Official Greeter?

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  6. Scubalong

    Scubalong Official Greeter?

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    It is work for me boss......maybe it is not compatible for Canuk :rolleyes:
     


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  7. soloii-74

    soloii-74 New Member

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    I recently gutted my '07 exhaust. I think it sounds pretty cool :cool:. While this youtube video is not of my bike, mine sounds the same. 2007 honda vfr 800 gutted pipes 25th Anniversary - YouTube .

    I can't hear my exhaust very well above 50 mph (although I'm pretty sure everybody else nearby can - but without being in pain - like some harleys cause :hurt:) - wind noise dominates & I always ride w/earplugs, but in lower gears where it is easy to hear, it sounds best from 4k to redline (good growl, combined with the vtec howl) :flex:.

    There are several threads here including a brief one here I started http://vfrworld.com/forums/6th-generation-2002-2009/39123-07-rwb-modifications-exhaust-hid-low-beams.html, as well as some other good ones on VFRD (Linked above in Scubalong's post :scubalong: :clap2: ) which give some detail about the process. I did have to break the internal spot welds using a long, sharp chisel, and I was careful to leave the inner perforated, insulating part of the mufflers intact - to help reduce the possibility of having hi frequency buzzing & too much of a raspy sound. Look around at the various threads on both forums, and you will see some pretty well done gut jobs. I thought about the partial gut, but decided I wanted the exit pipes to still protrude through the heat shielding. :thumbsup:

    Good Luck & have fun!
     


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  8. slimsean

    slimsean New Member

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    Thanks, this realie helped a lot. I agree with you on the stock pipes looking better. Thank you again . This site and it's users are awesome.
     


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  9. gtofield

    gtofield New Member

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    Hi, new to the VFR world and the site (I will post a pic shortly)...GREAT sound. Sorry if this is just parsing the lingo, but is removing the baffles considered 'gutting' or is that just a partial mod?
     


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  10. soloii-74

    soloii-74 New Member

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    Removing the baffles is pretty much the full gut. There are variations within this category, removing sound deadining material, and perforated liner would be an additional (but pretty much unnecessary, since it shouldn't disrupt exhaust flow) step - but it might be a little easier & you would lose some more weight - Hmmmm, :decision:. I suppose that in a full gut you could also remove the internal diffuser (at the entrance to the muffler), but I would be suprised if it would significantly improve the sound or the exhaust flow, and I think it would be a lot of additional work. :frusty:
    The partial gut involves cutting the pipes inside the muffler w/o cutting (and rewelding) the ends. This method mostly bypasses the internal baffles, but has the exhaust flow out underneath the rear heat shields - since it gets rid of the exhaust pipe stubs which normally stick through the heat shield.
     
    Last edited: Aug 21, 2012


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  11. rlmccoy

    rlmccoy New Member

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    I did the full gut ..... and didn't leave anything left the whole "innards" came out as one piece ... see pic ... then had the ends welded back together.

    Has anyone who did the full gut notice any buzzing because they removed the inner perforated, insulating part of the mufflers?

    photo(6).jpg photo(7).jpg
     


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  12. soloii-74

    soloii-74 New Member

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    I left the sound absorbing/insulating liner in mine because I thought some buzziness or a tinny sounding exhaust note might be possible. :unsure:

    I'm happy with the result. :thumbsup:

    Removing everything would make them a little lighter. Pluses and minuses to both.
     


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  13. gtofield

    gtofield New Member

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    Thanks guys...mine ('06) sounds very much like the video posted earlier in this thread...I knew the baffles had been removed, but wasn't sure of the other variations. Excellent info, thanks all. Many more questions to come! Thanks from northern NJ...
     


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  14. taylor65

    taylor65 New Member

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    What about his question of it being harmful to the motor? I have a 98 and have considered gutting one just to see if I can(still haven't tried) but can't help but think letting it breathe that much more could the fi compensate? Same with an aftermarket or gut do you not have to re-program something? Thans
     


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  15. rlmccoy

    rlmccoy New Member

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    Once you take off the exhaust you will see how constricting the catalytic converter is .... this mod won't do anything to the engine.

    My previous VFR800 had a Staintune header with Two Bros Vale pipes and no catalytic converter .... = even more air flow and I had no issues at all.
     


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  16. taylor65

    taylor65 New Member

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    Did you check your plugs to see if its lean?
     


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