T100 Drag Pipes???

Discussion in 'Bonneville' started by harrymountain, Oct 14, 2020.

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  1. harrymountain

    harrymountain New Member

    Sep 21, 2020
    8
    3
    London
    Hey Guys,

    I have a 2014 T100 and I am so in love with the drag pipes that British customs make. However, they are about $800 our of my budget.

    Just wondering if anyone has an alternative solution with a slip-on, cheaper product or even just cutting down stock pipes and removing the muffler.

    For context, they look like this


    https://britishcustoms.com/products/drag-pipes
     
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  2. joe mc donald

    Dec 26, 2014
    13,874
    1,000
    slough / burnham
    Harrymountain
    Welcome to the family. Looks like all you need do is remove your cans and you achieve the same. If you want a baffle just purchase one and fit by drilling a small hole in the down pipe and rivet it there. Or try Burton Bike Bits.
    Regards
    Joe
     
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  3. harrymountain

    harrymountain New Member

    Sep 21, 2020
    8
    3
    London
    Hey Joe, thanks so much for getting back to me! I am going to have to put you on the spot here since you have replied. If I was to just remove the cans there would be a little 'flare' taking away from the aesthetic of drag pipe (see pic). Would you suggest I just cut that off?

    Finally, is it just a myth that running straights without cans are bad for the engine? I cannot see how it would make a difference on EFI models.

    Any advice would be hugely appreciated, mate!

    Harry

    IMG_5554.jpg
     
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  4. Don the Don

    Don the Don Bigger Than The Average Bear

    Nov 5, 2019
    2,947
    800
    MORAY UK
    Hi and welcome, I take it you do not have any off those noise meters in London
     
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  5. harrymountain

    harrymountain New Member

    Sep 21, 2020
    8
    3
    London
    If I'm honest, I'm not too fussed on the noise, I keep the bike in the countryside away from everyone. Just hoping it will pass MOT
     
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  6. Notso

    Notso Senior Member

    Dec 17, 2018
    624
    243
    Solihull
    The ones in the picture have silencing all the way along, suspect that is why they are so expensive. No silencing at all will surely not pass an MOT, I mean there is overlooking something, but since the tester will hear you set off from home they will have a hard time saying they didn't notice!

    You really want to ride without any silencing? It would do my head in.
     
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  7. harrymountain

    harrymountain New Member

    Sep 21, 2020
    8
    3
    London
    Thanks Notso,

    It isn't the noise I am after it is the aesthetic I really like. This is why I am asking for an alternative way that I can make it sound bearable and look great
     
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  8. joe mc donald

    Dec 26, 2014
    13,874
    1,000
    slough / burnham
    Harrymountain
    Try Norman Hyde i am sure they did a similar pipe.
    Joe.
     
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  9. MyEvilTwin

    MyEvilTwin Well-Known Member

    Mar 14, 2020
    273
    63
    Sugartown Cabaret
    Technically removing the cans would change (reduce) exhaust back-pressure and flow characteristics of the exhaust gasses. Whether that has any affect on your AFR is up for debate, but I assume the ECM would make fueling adjustments to some degree to compensate.
     
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  10. Brad.b

    Brad.b Member

    Aug 26, 2020
    91
    13
    Leicestershire
    So I’ve just messaged a few local exhaust makers to see if they can make something similar as im a fan of the pipes tbh. I’m a bit concerned about whether or not it would pass an MOT to be honest. If I can get someone to make me some for half the price I’d be tempted and then just swap them out for an MOT if it fails.
    I’ve been on YouTube and can’t see any British videos with them fitted so I’d be interested to see.
     
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  11. Brad.b

    Brad.b Member

    Aug 26, 2020
    91
    13
    Leicestershire
    So I’ve message BC and they said although they’ve sold a few of these pipes to folk in the U.K. they’ve been told they haven’t passed the MOT with the pipes fitted, no surprise really, which means either being a mate with the guy who does your MOT or swapping them out. I’ve been quoted 500 quid for a guy to make these in stainless steel or 650 in titanium. If anyone’s interested drop me a message and I’ll
    Pass on there details. I’ve messaged and rang a few and at the minute only one bloke has got to me to say he would do it.
     
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  12. Brad.b

    Brad.b Member

    Aug 26, 2020
    91
    13
    Leicestershire
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  13. Rkt120

    Rkt120 Well-Known Member

    Oct 18, 2020
    169
    83
    Wiltshire
    You could get some short slip on pipes Farley cheap from eBay, I have seen a picture of them on a Bonnie and look really good.
     
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  14. Brad.b

    Brad.b Member

    Aug 26, 2020
    91
    13
    Leicestershire
    To be honest I’ve been pondering how it will get through its MOT in current form(it deffo won’t pass ) I will take a look, thanks chap
     
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  15. joe mc donald

    Dec 26, 2014
    13,874
    1,000
    slough / burnham
    Brad.b
    Yes any cans you can get just stick them on for MOT and remove again. Simple as.
    Joe.
     
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  16. Essexboy

    Essexboy Active Member

    Apr 16, 2017
    183
    43
    Essex
    The old trick for running drag pipes while still maintaining some backpressure was to install VW Beetle tail pipes in the end as they had some internal baffling,they're probably not so easy to find now but there are a few classic bike companies that sell baffles on their own so you could make something up. Personally I would go for some kind of custom map for the fuelling as I have melted pistons in the past and I think that could be an expensive repair on a Bonnie.
     
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  17. Brad.b

    Brad.b Member

    Aug 26, 2020
    91
    13
    Leicestershire
    Already sent an email to TTP, got a stage 2 kit on order and a suitable map recommended. I’ll take a look reference baffles. Thanks for the advice chap
     
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  18. 45Brit2017

    45Brit2017 Well-Known Member

    May 30, 2017
    146
    93
    UK
    My T100 had Dunstall silencers when I first had it. They just about got through MoT with advisories at the dealer who sold me it, wouldn’t pass anywhere else.

    After a while I just got fed up with the noise and refitted the stock silencers, minus the AIS pipework and had the bike remapped with an aftermarket map.

    Bike runs much better that way.
     
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