Topic: CB400F Mystery Header

[MaaseyRacer]

On a CB400F parts bike I acquired this CB400F Mystery header (in photos next to a Kerker header).  Does any one know who makes this header or where it may come from?

Mystery Header on the left and the Kerker on the right:




Mystery Header on the right and the Kerker on the left:


Close up of the collector and exit pipe:

[domer]

Looks a lot like the ancient kerker on my cb500... I'll get u a pic.

[MaaseyRacer]

So is there an older and newer style Kerker for the CB400F?

[domer]

here are some pics of the one on my 500, well as best i could get in my garage with out taking it off. i believe mine is pretty old, but am unsure. it doesnt look like any other kerker ive seen, but i havent seen many in person! the megaphone just has kerker stamped on the mounting plate. i imagine there would be changes in the design over time as the one you know is a kerker, obviously was designed for better flow, yet they are very similar... im gonna stick with both being kerker.

[hosspowerinc]

Do you want to sell either header? Im looking for an aftermarket 4-1.