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How to tell if I have a Honda collector box and header pipes.

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Athame57:
Having just fitted new items I'm soon to offer my not so bad CB400F collector box and header pipes on Ebay. But how can I actually tell if I have the originals? I see no markings to tell me anything on what I have here.

Orcade-Ian:
I have a genuine system bought from DS in the late 90's for £150 complete with clamps and 377 silencer (stop crying at the back, I know they have gone up a little bit since then!)  I can't find any markings on the headers or collector but here are a few pics - sorry about the specs of dust - the cleaner was busy!

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The paint bands are exactly as they came.  Hope this helps identification,

Ian

Athame57:

--- Quote from: Orcade-Ian on July 05, 2025, 05:07:47 PM ---
The paint bands are exactly as they came.  Hope this helps identification,

--- End quote ---
Well, I can't find much to compare with the paint marks, but after 47 years (?)on a bike that has been through the mill, no surprise there. That said I'm pretty satisfied it's original so I'll spruce them up for Ebay pics and flog them as such!  ;D

Athame57:
By the way Ian, do you actually ride this mint bike, or just take it to shows?  :)

Laverda Dave:
Look at the very top of the headers where they go into the exhaust ports in the head (by the flange that is gripped by the finned exhaust clamps. You should see one or two very small circular indentations about 3mm in diameter. I think these are spot welding marks made when the headers were made. This is where the second inner skin has been welded to the outer skin. Genuine Honda headers were double skinned to avoid 'bluing'. Whilst this may not indicate the headers are genuine, I don't think aftermarket headers were double skinned including the repro sets sold by DSS.

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