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#707636 - 09/07/17 8:39 pm BSA loud mufflers? (Plus a little extra hp)  
Joined: Jun 2017
Posts: 79
Alexp Online content
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Alexp  Online Content
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Joined: Jun 2017
Posts: 79
Canada
Looking for an upgrade to my BSA B25. I want to add a little extra HP and if it's loud, that's fine as well, as I find the stock muffler is a bit too quiet to be safe. I'm open to anything! Located in Canada but no problems shipping overseas if I have to! Thanks!!

alexP

#707655 - 09/08/17 1:05 am Re: BSA loud mufflers? (Plus a little extra hp) [Re: Alexp]  
Joined: Jan 2012
Posts: 255
Roger Gulledge Offline
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Roger Gulledge  Offline
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Joined: Jan 2012
Posts: 255
Oahu Hawaii USA
Alexp...you might get more of a response if you post this on the BSA page or British Motorcycles in General.


Roger G
70 Thunderbolt
#707677 - 09/08/17 11:23 am Re: BSA loud mufflers? (Plus a little extra hp) [Re: Alexp]  
Joined: Dec 2004
Posts: 8,827
kommando Online content
kommando  Online Content


Joined: Dec 2004
Posts: 8,827
Scotland
Norton Commando peashooter silencers fit as pipe diameter is the same, not sure if they add power but they sound good and not overly load and are straight through, the bike seems to pick up better when the revs rise but this is always deceptive as it could be its worse lower down than before. You just need to fabricate a bracket to go from the 2 bolt holes on the peashooter to the current plate near the passenger footpeg.

#707819 - 09/09/17 1:17 pm Re: BSA loud mufflers? (Plus a little extra hp) [Re: Alexp]  
Joined: Jun 2017
Posts: 79
Alexp Online content
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Alexp  Online Content
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Posts: 79
Canada
Thank you Roger and Kommando for getting back to me! Kommando, I have seen those pipes on BSAs before, and am going to order one and give it a shot! Thanks!!

Roger- I was under the impression that any modding be out here. Didn't want the BSA boys throwing eggs at me! smile

Alex

#709880 - 09/28/17 7:54 am Re: BSA loud mufflers? (Plus a little extra hp) [Re: Alexp]  
Joined: May 2013
Posts: 4,533
Allan Gill Offline
Allan Gill  Offline



Joined: May 2013
Posts: 4,533
Rotherham - S. Yorkshire
Which silencer have you got fitted now? the shorter (A10/A65 esk styled one) or the longer ugly (IMO) cigar shaped silencer? the shorter one will work quite well compared to the later cigar type.

Alternately, If you can get your hands on an original dunstall mega (the pattern ones don't seem to be of the same quality) shorten the downpipe a little then you will alter the performance characteristics....

Alternately.... fit a bigger motor wink

http://www.britbike.com/forums/ubbthreads.php?ubb=showgallery&Number=703335#comments


beerchug
#711313 - 10/12/17 2:33 pm Re: BSA loud mufflers? (Plus a little extra hp) [Re: Alexp]  
Joined: Jun 2017
Posts: 79
Alexp Online content
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Alexp  Online Content
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Canada
Alan, thanks mate!

I have the A10 style, as my B25 is the scrambler model. I would like to fit a bigger motor!!! Haha! Actually as it's my first ever motorcycle, I figured a 250 would suit me just fine!! I will see what the chances are of getting an original Dunstall, but I have a feeling that's a tall order!


Alex

#711494 - 10/14/17 6:02 am Re: BSA loud mufflers? (Plus a little extra hp) [Re: Alexp]  
Joined: Jan 2014
Posts: 3,247
NickL Online content
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NickL  Online Content
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Posts: 3,247
Aus
The emgo copy is a good alternative to the dunstall.



#711579 - 10/14/17 9:32 pm Re: BSA loud mufflers? (Plus a little extra hp) [Re: Alexp]  
Joined: Aug 2015
Posts: 891
Andy Higham Online content
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Andy Higham  Online Content
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Joined: Aug 2015
Posts: 891
Bolton Lancs UK
"Listen to me I must be going fast"


1955 BSA B31 400cc "Stargazer"
1962 Greeves 200cc "Blue Meanie"
1962/67 Greeves 350cc
1967 Greeves 360cc Challenger
1984 Suzuki GSX1100 EFE "Sorcerers Apprentice"
Modified Nu-Trak GM500cc sprint/LSR bike "Deofol"
2003 Aprilia RSV Mille "Lo Stregone"
#711858 - 10/18/17 12:14 am Re: BSA loud mufflers? (Plus a little extra hp) [Re: Alexp]  
Joined: Jan 2014
Posts: 3,247
NickL Online content
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NickL  Online Content
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Posts: 3,247
Aus
The dunstall's and the emgo's can be packed with f'glass matt to tame them.
Their construction allows this easily.
Both my irons employ this method and are quite quiet.



#711991 - 10/19/17 2:24 pm Re: BSA loud mufflers? (Plus a little extra hp) [Re: Alexp]  
Joined: Sep 2007
Posts: 425
HillbillyBarr Online content
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HillbillyBarr  Online Content
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Joined: Sep 2007
Posts: 425
S.E. Ohio
Since you've got a high pipe how about the C15's comp pipe? They go for about $90 US on eBay. I was thinking of using them on my 441 Victor

#712063 - 10/20/17 6:02 pm Re: BSA loud mufflers? (Plus a little extra hp) [Re: Alexp]  
Joined: Jun 2017
Posts: 79
Alexp Online content
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Alexp  Online Content
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Posts: 79
Canada
Hillbilly thanks for that! I'm going to look into that!!

Nick - good info mate thanks

Andy- haha. The sarcasm you bring always makes me laugh!! In my defence, I have a small, 250cc cafe racer. If it sounds like a bee, then it's not really the best thing ever. I would also like to not get hit by a car as here in Canada, motorcyclists tend to be looked over when people are making turns!!



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