I reckon so. Not heard back from them yet though.Data wrote: ↑Wed Feb 01, 2023 12:32 pmIf possible get the right part directly from Leo Vince. You may only get a minor performance boost with the original baffle fitted. Generic ones may not have the desired effect.Bingo wrote: ↑Wed Feb 01, 2023 10:37 amAll the ones that come up when you google Leo Vince L SBK DB killer seem to be curved a the top. The generic ones for a fiver on Ebay seem to be straight.roadster wrote: ↑Wed Feb 01, 2023 10:03 am There are plenty of generic devices available on Ebay you just need to have a general measure up to see what will ft and whether it needs to be straight or curved. There will almost certainly be a hole at the bottom of the outlet pipe and it may even have a weld-nut behind it already. Usually there is no need to drill out the pop rivets but occasionally the outer black bit needs to be removed to get better access.
For example
(Click to enlarge)
https://www.ebay.co.uk/p/1862810521
I dont think I would be too happy or confident in getting a generic one to fit. Could it not cause problems? Still no reply from Leo Vince.
Its not a massive issue but it is loud.
leovince L sbk db killer quietner (BV 350 ST)
- Bingo
- Posts: 181
- Joined: Mon Jan 25, 2021 6:29 pm
- Current Ride: BV 350 Honda Vision 110
- Location: North Yorkshire Dales
Re: leovince L sbk db killer quietner (BV 350 ST)
-
- Posts: 153
- Joined: Fri Mar 20, 2020 12:42 pm
- Current Ride: RE interceptor Honda C90
- Location: Isle of Wight
Re: leovince L sbk db killer quietner (BV 350 ST)
Did you try phoning them ? 01706 212102.
- Bingo
- Posts: 181
- Joined: Mon Jan 25, 2021 6:29 pm
- Current Ride: BV 350 Honda Vision 110
- Location: North Yorkshire Dales
- Bingo
- Posts: 181
- Joined: Mon Jan 25, 2021 6:29 pm
- Current Ride: BV 350 Honda Vision 110
- Location: North Yorkshire Dales
- roadster
- Benefactor
- Posts: 578
- Joined: Tue Sep 13, 2016 8:06 pm
- Current Ride: Sym Joymax 125
Re: leovince L sbk db killer quietner (BV 350 ST)
These days I don't usually bother but I used to enjoy experimenting with different baffles to find the balance between noise and performance. The basic first step is to simply have an outlet pipe which matches the original silencers diameter. There is a big mythology about exhausts which suggests that bigger diameter equals better performance but often that is just not true - especially with modern scooter engines. The (only?) real benefits of aftermarket exhausts are a reduction in weight, arguably a more interesting sound, and better appearance.
Located on UK South Coast
Honda Supercub SYM Joymax 125 and Honda CB300R. Previously Silence S01, Kymco AK550, Triumph Tiger 850, Triumph Street Twin etc...
Honda Supercub SYM Joymax 125 and Honda CB300R. Previously Silence S01, Kymco AK550, Triumph Tiger 850, Triumph Street Twin etc...
- Data
- Benefactor
- Posts: 3312
- Joined: Wed Feb 08, 2012 12:43 pm
- Current Ride: Royal Enfield 350 Meteor
- Location: Starfleet Command, North Essex Branch, UK
Re: leovince L sbk db killer quietner (BV 350 ST)
Spot on roadster!roadster wrote: ↑Thu Feb 02, 2023 10:23 am These days I don't usually bother but I used to enjoy experimenting with different baffles to find the balance between noise and performance. The basic first step is to simply have an outlet pipe which matches the original silencers diameter. There is a big mythology about exhausts which suggests that bigger diameter equals better performance but often that is just not true - especially with modern scooter engines. The (only?) real benefits of aftermarket exhausts are a reduction in weight, arguably a more interesting sound, and better appearance.
Probably not ugly enough for the 'Ugly Bunch'! 
Been riding for 55 years & owned too many bikes to list here...

Been riding for 55 years & owned too many bikes to list here...
-
- Posts: 313
- Joined: Sun Nov 07, 2021 6:23 pm
- Current Ride: Burgman 650
Re: leovince L sbk db killer quietner (BV 350 ST)
I very vaguely seem to remember back in the mid sixties making our baffles out of copper pipe, in the days of two strokes of course. I have no recollection of how successful it was, but I would guess not very.
- Ralph
- Posts: 980
- Joined: Fri Jun 01, 2012 1:20 pm
- Current Ride: Yamaha X-max 300 300
- Location: Near Fleetwood
Re: leovince L sbk db killer quietner (BV 350 ST)
Sounds like a Manx Norton on full chat.
- Bingo
- Posts: 181
- Joined: Mon Jan 25, 2021 6:29 pm
- Current Ride: BV 350 Honda Vision 110
- Location: North Yorkshire Dales
Re: leovince L sbk db killer quietner (BV 350 ST)
Thanks for the replies. I am still not getting notifications by email from this site so have to remember to come back and check for replies.
Never heard anything back from Leo Vince in the states or the UK dealer after I sent them a photo so kind of back to square one really.
Never heard anything back from Leo Vince in the states or the UK dealer after I sent them a photo so kind of back to square one really.
- Data
- Benefactor
- Posts: 3312
- Joined: Wed Feb 08, 2012 12:43 pm
- Current Ride: Royal Enfield 350 Meteor
- Location: Starfleet Command, North Essex Branch, UK
Re: leovince L sbk db killer quietner (BV 350 ST)
In my experience they take a while to get back to you Bingo. Won't hurt to give them a prod though!
Probably not ugly enough for the 'Ugly Bunch'! 
Been riding for 55 years & owned too many bikes to list here...

Been riding for 55 years & owned too many bikes to list here...