As it looks like ill be hanging onto my BV350 ST for a while longer yet Im wondering about taming the beast as it thinks its a single pot Harley.
Its really loud. I kind of stupidly thought it was cool at first but its kind of annoying now. It really is loud.
Apparently you can get a DB killer quietner insert for them and I believe the SBK model I have on mine should have come with one but it was on when I got the bike. Ive emailed Leo Vince to ask. There doesnt seem to be any in stock in the UK anywhere although I am not entirely sure which model I am looking for. This is it and how it sounds
leovince L sbk db killer quietner (BV 350 ST)
- Bingo
- Posts: 180
- Joined: Mon Jan 25, 2021 12:29 pm
- Current Ride: BV 350 Honda Vision 110
- Location: North Yorkshire Dales
- Data
- Benefactor
- Posts: 3236
- Joined: Wed Feb 08, 2012 6:43 am
- Current Ride: Royal Enfield 350 Meteor
- Location: North Essex, UK
Re: leovince L sbk db killer quietner (BV 350 ST)
Hello Bingo, yes it's pretty noisy. You may also be losing a little performance from lack of back pressure at some point/s in the performance curve. And yes, back pressure still matters on most modern injected engines. This also can affect mpg's. Refitting the exhaust baffle restores back pressure and may just improve not just noise but performance and mpg figures. You won't know until you try it. Lots of folks remove baffles to try to improve performance, but that rarely happens unless the bike is put on the dyno and has it's ecu fuelling and ignition maps played with.
Probably not ugly enough for the 'Ugly Bunch'!
Been riding for 54 years & owned too many bikes to list here...
Been riding for 54 years & owned too many bikes to list here...
-
- Benefactor
- Posts: 7112
- Joined: Wed Apr 08, 2009 3:50 pm
- Current Ride: T-max mk6
- Location: Teesside UK
Re: leovince L sbk db killer quietner (BV 350 ST)
Ouch! The other thing is that in many cases exhausts aren't actually legal without the DB killer in.
- Bingo
- Posts: 180
- Joined: Mon Jan 25, 2021 12:29 pm
- Current Ride: BV 350 Honda Vision 110
- Location: North Yorkshire Dales
Re: leovince L sbk db killer quietner (BV 350 ST)
Thanks. I thought these exhausts were supposed to improve performance. I cant compare it to another BV as Ive never ridden one but the reason I bought it over the other scooters I looked at is it went like the clappers. I could do with toning it down a bit though I reckon as it looks like Im keeping it. Just need to know how to do it.
-
- Benefactor
- Posts: 7112
- Joined: Wed Apr 08, 2009 3:50 pm
- Current Ride: T-max mk6
- Location: Teesside UK
Re: leovince L sbk db killer quietner (BV 350 ST)
The Bev350 is certainly fast! Probably keeps up with a Tmax at low to medium speeds.
- roadster
- Benefactor
- Posts: 498
- Joined: Tue Sep 13, 2016 2:06 pm
- Current Ride: Silence S01
Re: leovince L sbk db killer quietner (BV 350 ST)
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)
For example
(Click to enlarge)
Located on UK South Coast
SYM Joymax 125 and Honda CB300R. Previously Silence S01, Kymco AK550, Triumph Tiger 850, Triumph Street Twin etc...
SYM Joymax 125 and Honda CB300R. Previously Silence S01, Kymco AK550, Triumph Tiger 850, Triumph Street Twin etc...
- Bingo
- Posts: 180
- Joined: Mon Jan 25, 2021 12:29 pm
- Current Ride: BV 350 Honda Vision 110
- Location: North Yorkshire Dales
Re: leovince L sbk db killer quietner (BV 350 ST)
All 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 4:03 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.
-
- Posts: 152
- Joined: Fri Mar 20, 2020 7:42 am
- Current Ride: Forza 300 Honda C90
- Location: Isle of Wight
Re: leovince L sbk db killer quietner (BV 350 ST)
Loud.. you could have been shot for sheep worrying
A £5 eBay one is worth a try
A £5 eBay one is worth a try
- Data
- Benefactor
- Posts: 3236
- Joined: Wed Feb 08, 2012 6:43 am
- Current Ride: Royal Enfield 350 Meteor
- Location: North Essex, UK
Re: leovince L sbk db killer quietner (BV 350 ST)
Completely right Grumpy.
Probably not ugly enough for the 'Ugly Bunch'!
Been riding for 54 years & owned too many bikes to list here...
Been riding for 54 years & owned too many bikes to list here...
- Data
- Benefactor
- Posts: 3236
- Joined: Wed Feb 08, 2012 6:43 am
- Current Ride: Royal Enfield 350 Meteor
- Location: North Essex, UK
Re: leovince L sbk db killer quietner (BV 350 ST)
If 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 4:37 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 4:03 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.
Probably not ugly enough for the 'Ugly Bunch'!
Been riding for 54 years & owned too many bikes to list here...
Been riding for 54 years & owned too many bikes to list here...