SOHC.co.uk Forums > CB350/400

Cb400 Four silencer advice

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AshimotoK0:

--- Quote from: paul gledhill on March 08, 2016, 12:41:59 PM ---I bought the DSS one and not impressed. as it was a replica I thought it would be the same but it is louder and I didnt want that.
I bought it so I could store the original as it is mint.
Wish I had gone with the Motad replica one now (stainless too)

--- End quote ---

Must be down to baffling inside. Joe from Brituro is a member on here and very amenable. If the baffling isn't correct then maybe someone can point him in the right direction to reduce the noice as per the Sankei original. The Yamiya one is the same Brituro one but costs a fortune once reimported.

Rozabikes Tim:
Remember the short reverse cone dunstalls sounding good on 400/4 back in the day. Didn't they have a nut inside cone to adjust baffle?

Probably sound awful to me now as a grumpy old man!!

AshimotoK0:
seem to remember 'back in the day' that a firm called Campbell's made a pattern 400/4 silencer ... And no it wasn't a soup can  ;D
Our  mate BP says he likes the DS (brituro) pattern silencer

http://www.ebay.co.uk/itm/Honda-CB400F-400-Four-400-4-OE-new-exhaust-system-with-new-pattern-silencer-/391400019520?hash=item5b21425640:g:LbgAAOSwmmxW3EDN

ColCB400 4:
I measured another collector box I have and its 42mm od, and they do a dunstall which could fit but they seem to sell in pairs... might ring them.
Thank you Paul Gledhill for confirming my suspicions, I am glad its not just me. I don't want loud just a deeper sound, I know the bike can do it. My last silencer just had to go and the replacement is not cheering me up like it should.

@ Mike the bike, I do agree to some extent, your motad was just killing the thing, it must have felt like it was pulling a car.

I have read somewhere some chap took out the muffling and replaced it with some good stuff but these silencers are sealed.

Think I will be ringing ClassicBikeShop tomorrow... thanks guys.

Brituro:

--- Quote from: ColCB400 4 on March 07, 2016, 07:43:24 PM ---I bought a silencer for my 400/4 from ds last year and it sounds lame.
Anyone know of a supplier offering a better sounding silencer.
don't want to re-jet or tinker at all just unbolt the old one and fit the new.
Prefer similar styling to standard but happy to look at anything that sounds more the part.
I have a standard set of Honda downpipes.

--- End quote ---

Hi Col

Can you elaborate on the "lame sound" please. All of our silencers are made to original spec so the sound should be the same. This is the first I have ever heard of this issue, and normally if there is an issue we hear about it straight away. This silencer is made in batches of 50+ and we have had no problems with any others.

Have you tried another silencer on to see if it it producing the same sound?

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