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  • fatbat Posts: 2721
    Forum Legend fatbat
    30 Nov 2018 10:30 AM
    I stuffed around trying to quieten the big radius exhaust. Smart partz baffles, big city thunder baffles, using combinations of these baffles with the Vance and Hines baffles, welding custom made parts and baffles together etc. I softened the sound a little but it impacted noticeably on performance and given id just spent $4k on an s&s top end, I wasn’t happy. If you do a search on big city thunder baffles you’ll probably find my posts and pictures. After all the effort in addition to looking at other options for purchase and/or development, i simply bought the supermeg exhaust and got good performance with a good but not too noisey sound. 

    Installing a flapper valve into another exhaust will be a complicated and/or costly exercise. 

    I’ve considered most of these options before and the only reasonable alternatives are the patriot defender exhaust or the supertrapp supermeg exhaust. For the supermeg exhaust you can also buy an adjustable end cap that opens between closed and open at the turn of a screw. I think it’s made by LA choppers or cycles from memory.
  • Muzza Wa Posts: 232
    Stock Poster Muzza Wa
    01 Dec 2018 03:35 PM
    Quoting Ratbob on 30 Nov 2018 06:49 AM
    Cheers Muzza
    Whether using a Super tuner or FP3, Won’t the sound valve be closed at idle, in gear or not ?
    I understand that with two valves you’ll need to have them partially open at idle for flow but that could also be achieved by drilling the valves so they can close and maintain a desired flow rate, just add more holes till you get it right ?
    I’ve sent an email to V&H asking them for a technical description on how their FP3 algorithm works, regarding the exhaust flaps, given that they sell a Californian version of the FP3, that must conform to that state’s EPA regs (I don’t know if those regs include noise emissions), and also to ask them why they have an option for “active exhaust” when none of their pipes (at least that I can tell) are “active”. I have also asked them if I can code the flaps conditionally “closed” at 2505 rpm, in the hope that I’ll get to the 91db that the sticky label on my frame references. Problem is that you can easily be doing 60km and above at 2505 rpm, hence my need to include logic that says if the kick stand switch is on, the speed is zero and the revs are between 0-2505 then the bike is in test mode and therefore the flaps must be closed. The FP3 does read the status of the kick stand switch and also knows the speed, so there is hope......let’s see what they say.

    I’ve scrutinised my stock pipes and I’m convinced that with a bit of cutting, welding and grinding that I can install the flap mechanicals on to the VHBR and use the stock actuator. 

    I have a FP3 installed on my wife’s 2012 Fatboy Lo, and I’m in the process of returning it to stock, because we are selling it, so I’ll also conduct my own tests by turning the active exhaust feature on and monitoring the physical actions of the exhaust flaps on her stock pipes.

    I am convinced that baffle wise there is nothing that can be done to the VHBR pipes to quieten them down to,legal limits and not chocking the engine. Every combination of off the shelf and home made baffles does fuck all. See fatbats comments which echo ours.
  • Muzza Wa Posts: 232
    Stock Poster Muzza Wa
    01 Dec 2018 03:38 PM
    Quoting fatbat on 30 Nov 2018 10:30 AMedited: 30 Nov 2018 10:38 AM
    I stuffed around trying to quieten the big radius exhaust. Smart partz baffles, big city thunder baffles, using combinations of these baffles with the Vance and Hines baffles, welding custom made parts and baffles together etc. I softened the sound a little but it impacted noticeably on performance and given id just spent $4k on an s&s top end, I wasn’t happy. If you do a search on big city thunder baffles you’ll probably find my posts and pictures. After all the effort in addition to looking at other options for purchase and/or development, i simply bought the supermeg exhaust and got good performance with a good but not too noisey sound. 

    Installing a flapper valve into another exhaust will be a complicated and/or costly exercise. 

    I’ve considered most of these options before and the only reasonable alternatives are the patriot defender exhaust or the supertrapp supermeg exhaust. For the supermeg exhaust you can also buy an adjustable end cap that opens between closed and open at the turn of a screw. I think it’s made by LA choppers or cycles from memory.
    Agreed fatbat. 
    Installing flaps in the pipes will not be easy but I’m hoping that it will be rewarding. I’ve got time, I just need more information and then courage to make the first cut!
    I don’t like the look of other pipes hence why I am on a quest to quieten the VHBR down.
  • Muzza Wa Posts: 232
    Stock Poster Muzza Wa
    01 Dec 2018 03:46 PM
    I have emailed Jekill and Hyde to find out if they sell their systems minus pipes etc, and also if they supply the flaps to fit different ID pipes. My feeling, based on what I’ve read, is that they will not sell the components separately.

     I have also emailed kesstech the same request but I feel I’ll get the same response.

    If I do get negative responses regarding the supply only then I’ll query how they handle repairs when individual parts fail.

     Jekill and Hyde guarantee that their pipes will meet the specifications of your bike if you send them a picture of the sticky label on the frame and supply the details of your air cleaner, but their website also says they guarantee 100db!! That helps nobody!

    There was something else.....the ADR state that adjustable exhausts are not acceptable, given that the stock pipes are adjustable I reckon I have good grounds to argue that point, if the stock active components are used, just on a different pipe!
  • Muzza Wa Posts: 232
    Stock Poster Muzza Wa
    13 Dec 2018 11:31 PM
    Sooooo, I got responses from all 3 companies:-

    Kesstech 

    Hello Muzza,

    many thanks for your request.
    Sorry, your project is not possible. We don't sell single parts.
    If you like to have a kesstech exhaust system you can only choose slipon or a complete system.

    Best Regards
    Joshua

    From Jekill and Hyde 

    Hello Muzza,

    Thank you for your interest in our systems.

    We only sell complete systems via our dealers.

    You can find our products and dealers on our website, www.jekillandhyde.com.

    If you have any more questions, please contact us.

    Kind regards,

    Sjors

    So that pretty much kills the idea of using their parts, unless I can find a dealer willing to part with parts (pardon the play on words), however.............I got an encouraging response from V&H, which I will be following up on in the next few days, I’m hoping that I might be on to something......watch this space, all you V&H SS &BR lovers, that want to keep your pipes and avoid the dreaded canary.
  • Ratbob Posts: 592
    Adelaide Hills
    Performance Poster Ratbob
    13 Dec 2018 11:51 PM
    Quoting Muzza Wa on 13 Dec 2018 11:31 PM
    Sooooo, I got responses from all 3 companies:-

    Kesstech 

    Hello Muzza,

    many thanks for your request.
    Sorry, your project is not possible. We don't sell single parts.
    If you like to have a kesstech exhaust system you can only choose slipon or a complete system.

    Best Regards
    Joshua

    From Jekill and Hyde 

    Hello Muzza,

    Thank you for your interest in our systems.

    We only sell complete systems via our dealers.

    You can find our products and dealers on our website, www.jekillandhyde.com.

    If you have any more questions, please contact us.

    Kind regards,

    Sjors

    So that pretty much kills the idea of using their parts, unless I can find a dealer willing to part with parts (pardon the play on words), however.............I got an encouraging response from V&H, which I will be following up on in the next few days, I’m hoping that I might be on to something......watch this space, all you V&H SS &BR lovers, that want to keep your pipes and avoid the dreaded canary.
    Ripper, thanks Muzza, I’ll be watching for sure. Cheers
  • Muzza Wa Posts: 232
    Stock Poster Muzza Wa
    22 Dec 2018 09:21 AM
    So I continue to exchange very encouraging communications with the third company so let’s see what their techies have to say over time.  Bottom line is yes it’s possible well look at it.
  • Iron Posts: 275
    South Oz
    Stage 1 Poster Iron
    29 Dec 2018 11:13 AM
    I have been thinking about this a lot as well, same pipes same engine same noise. What can be done I still don't know. Put standard system back on to avoid fines? purchase new system ? I like the look of the V&HBR pipes but agree with you that they are just to bloody loud. I have put quiet baffles in but not much difference at all in DB drop. Watching this thread with great interest. 
    .
  • Muzza Wa Posts: 232
    Stock Poster Muzza Wa
    31 Dec 2018 01:27 PM
    Nice bike iron Man!
    I shall re-engage with them on my return from holidays and do my best to keep you all appraised of the situation.

    Happy New year.
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